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Electricity for Boys
Electricity for Boys

Chapter VII · Chapter 7

Chapter 7 of Electricity for Boys is here in full — 77 sentences across 16 reading sections, with audio for every sentence and word.

Cover illustration for Electricity for Boys
Context Illustration Reading 1/15 · 5 lines
English subtitles · tap any word to listen 1 / 5
PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.
We need certain apparatus to make connections, which will be constructed first.
A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:
A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.
This bar is also of copper or brass and is pivoted to the fingers.
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AI-generated narration by OpenAI · Slow US English
LEARNER DICTIONARY
Archivist
/ˈɑːrkɪvɪst/
Editorial verification pending

A keeper or guardian of historical records and memories.

Electricity for Boys

Chapter VII · Chapter 7

Chapter 7 of Electricity for Boys is here in full — 77 sentences across 16 reading sections, with audio for every sentence and word.

Reading 1/15 · 5 reading units · Lines 1–5

Line 1
PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.
Line 2
We need certain apparatus to make connections, which will be constructed first.
/wiː niːd ˈsɜːrtən ˌæpərˈætəs tuː meɪk kəˈnekʃənz wɪtʃ wɪl biː kənˈstrʌktəd fɜːrst/
Line 3
A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:
Line 4
A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.
Line 5
This bar is also of copper or brass and is pivoted to the fingers.
/ðɪs bɑːr ɪz ˈɔːlsoʊ ʌv ˈkɑːpər ɔːr bræs ənd ɪz ˈpɪvətɪd tuː ðə ˈfɪŋɡərz/

Learner Dictionary

These definitions explain words found in the current reading and keep every example grounded in its original sentence.

Oxford-style entry order: headword, part of speech, US IPA, concise definition, contextual example, and audio.

electrical adjective US /ɪˈlektrɪkəl/

relating to or concerned with electricity

From this reading “PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.”

elementary adjective US /ˌeləˈmentri/

easy and not involved or complicated

From this reading “PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.”

Fig noun US /fɪɡ/

a diagram or picture illustrating textual material

From this reading “A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.”

pivoted verb US /ˈpɪvətɪd/

past form of “pivot” — turn on a pivot

From this reading “This bar is also of copper or brass and is pivoted to the fingers.”

simpler adjective US /ˈsɪmpələr/

comparative of “simple” — having few parts; not complex or complicated or involved

From this reading “PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.”

switch verb US /swɪtʃ/

change over, change around, as to a new order or sequence

From this reading “A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:”

switches noun US /ˈswɪtʃəz/

plural of “switch” — control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit

From this reading “PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.”

upwardly adverb US /ˈʌpwərdli/

spatially or metaphorically from a lower to a higher position

From this reading “A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.”

All words in this reading · 92

Every word in these five lines is listed here, and every one of them can be played on its own.

Dictionary details are shown only when verified; these are not licensed Oxford entries.

2

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

3

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

4

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

43

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

AdeterminerUS /ə/

used before a singular noun to mean one of a group, when it is not a particular one

From this reading A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:

alsoadverbUS /ˈɔːlsoʊ/

in addition

From this reading This bar is also of copper or brass and is pivoted to the fingers.

ANDconjunctionUS /ənd/

used to join words or parts of a sentence that go together

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

ANNUNCIATORS

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

APPARATUSnounUS /ˌæpərˈætəs/

equipment designed to serve a specific function

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

arrangedadjectiveUS /ərˈeɪndʒd/

disposed or placed in a particular kind of order

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

artauxiliary verbUS /ɑːrt/

an old form of “are”, used with “thou”

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

asconjunctionUS /æz/

at the same time that; because; in the way that

From this reading A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:

atprepositionUS /æt/

in or near a particular place or position

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

BnounUS /biː/

aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

barnounUS /bɑːr/

a room or establishment where alcoholic drinks are served over a counter

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

basenounUS /beɪs/

installation from which a military force initiates operations

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

beauxiliary verbUS /biː/

used with a past participle to form the passive, or with -ing for continuous tenses

From this reading We need certain apparatus to make connections, which will be constructed first.

beingauxiliary verbUS /ˈbiːɪŋ/

the -ing form of “be”

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

BELLSnounUS /belz/

plural of “bell” — a hollow device made of metal that makes a ringing sound when struck

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

bentnounUS /bent/

a relatively permanent inclination to react in a particular way

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

betweenprepositionUS /bɪˈtwiːn/

in the space, time, or range separating two things

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

bindingnounUS /ˈbaɪndɪŋ/

the capacity to attract and hold something

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

blocknounUS /blɑːk/

a solid piece of something (usually having flat rectangular sides)

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

brassnounUS /bræs/

an alloy of copper and zinc

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

BUTTONSnounUS /ˈbʌtənz/

plural of “button” — a round fastener sewn to shirts and coats etc to fit through buttonholes

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

CnounUS /siː/

a degree on the centigrade scale of temperature

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

certainadjectiveUS /ˈsɜːrtən/

definite but not specified or identified

From this reading We need certain apparatus to make connections, which will be constructed first.

commenceverbUS /kəˈmens/

take the first step or steps in carrying out an action

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

connectionsnounUS /kəˈnekʃənz/

plural of “connection” — a relation between things or events (as in the case of one causing the other or sharing features with it)

From this reading We need certain apparatus to make connections, which will be constructed first.

constructedverbUS /kənˈstrʌktəd/

past form of “construct” — make by combining materials and parts

From this reading We need certain apparatus to make connections, which will be constructed first.

coppernounUS /ˈkɑːpər/

a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

DnounUS /diː/

a fat-soluble vitamin that prevents rickets

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

doauxiliary verbUS /duː/

used to form questions and negatives, and to give emphasis

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

electricaladjectiveUS /ɪˈlektrɪkəl/

relating to or concerned with electricity

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

elementaryadjectiveUS /ˌeləˈmentri/

easy and not involved or complicated

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

endnounUS /end/

either extremity of something that has length

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

FignounUS /fɪɡ/

a diagram or picture illustrating textual material

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

fingersnounUS /ˈfɪŋɡərz/

plural of “finger” — any of the terminal members of the hand (sometimes excepting the thumb)

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

firstadjectiveUS /fɜːrst/

preceding all others in time or space or degree

From this reading We need certain apparatus to make connections, which will be constructed first.

followsverbUS /ˈfɑːloʊz/

third-person singular of “follow” — to travel behind, go after, come after

From this reading A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:

goneadjectiveUS /ɡɔːn/

destroyed or killed

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

hasauxiliary verbUS /hæz/

the form of “have” used with he, she, it, or a singular noun

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

haveauxiliary verbUS /hæv/

used with a past participle to form the perfect tenses

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

holdverbUS /hoʊld/

cause to continue in a certain state, position, or activity; e.g., “keep clean”

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

holdsnounUS /hoʊldz/

plural of “hold” — the act of grasping

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

inprepositionUS /ɪn/

inside something, or within a place, period, or state

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

inchnounUS /ɪntʃ/

a unit of length equal to one twelfth of a foot

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

inchesnounUS /ˈɪntʃəz/

plural of “inch” — a unit of length equal to one twelfth of a foot

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

isauxiliary verbUS /ɪz/

the form of “be” used with he, she, it, or a singular noun

From this reading A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:

itpronounUS /ɪt/

a thing, animal, or idea already mentioned

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

LIKEverbUS /laɪk/

prefer or wish to do something

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

linenounUS /laɪn/

a formation of people or things one beside another

From this reading A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:

longadjectiveUS /lɔːŋ/

primarily temporal sense; being or indicating a relatively great or greater than average duration or passage of time or a duration as specified

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

madeadjectiveUS /meɪd/

produced by a manufacturing process

From this reading A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:

makeverbUS /meɪk/

engage in

From this reading We need certain apparatus to make connections, which will be constructed first.

maymodal verbUS /meɪ/

used to say something is possible, or to give permission

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

neednounUS /niːd/

a condition requiring relief

From this reading We need certain apparatus to make connections, which will be constructed first.

nowadverbUS /naʊ/

in the historical present; at this point in the narration of a series of past events

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

onprepositionUS /ɑːn/

touching and supported by a surface

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

onepronounUS /wʌn/

used to mean any person in general, including the speaker

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

orconjunctionUS /ɔːr/

used to join alternatives or possibilities

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

outlinesnounUS /ˈaʊtlaɪnz/

plural of “outline” — the line that appears to bound an object

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

overprepositionUS /ˈoʊvər/

above and across; more than

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

pairnounUS /per/

a set of two similar things considered as a unit

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

phenomenanounUS /fəˈnɑːmənə/

plural of “phenomenon” — any state or process known through the senses rather than by intuition or reasoning

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

pivotedverbUS /ˈpɪvətɪd/

past form of “pivot” — turn on a pivot

From this reading This bar is also of copper or brass and is pivoted to the fingers.

practicaladjectiveUS /ˈpræktəkəl/

concerned with actual use or practice

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

PUSHverbUS /pʊʃ/

move with force

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

screwnounUS /skruː/

someone who guards prisoners

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

serveverbUS /sɜːrv/

serve a purpose, role, or function

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

SIMPLEadjectiveUS /ˈsɪmpəl/

having few parts; not complex or complicated or involved

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

simpleradjectiveUS /ˈsɪmpələr/

comparative of “simple” — having few parts; not complex or complicated or involved

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

singleadjectiveUS /ˈsɪŋɡəl/

being or characteristic of a single thing or person

From this reading A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:

soconjunctionUS /soʊ/

for that reason; with the result that

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

someadjectiveUS /sʌm/

(quantifier) used with either mass nouns or plural count nouns to indicate an unspecified number or quantity

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

SWITCHverbUS /swɪtʃ/

change over, change around, as to a new order or sequence

From this reading A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:

SWITCHESnounUS /ˈswɪtʃəz/

plural of “switch” — control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

thedeterminerUS /ðə/

used before a noun that is already known, already mentioned, or the only one of its kind

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

thempronounUS /ðem/

the people or things already mentioned, as the object

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

thesedeterminerUS /ðiːz/

the plural of “this”: the people or things near, or just mentioned

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

thickadjectiveUS /θɪk/

not thin; of a specific thickness or of relatively great extent from one surface to the opposite usually in the smallest of the three solid dimensions

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

ThisdeterminerUS /ðɪs/

used for a person or thing that is near, or that has just been mentioned

From this reading This bar is also of copper or brass and is pivoted to the fingers.

toparticleUS /tuː/

used before the base form of a verb to make the infinitive

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

TWO-POLE

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading A TWO-POLE SWITCH.--A simple two-pole switch for a single line is made as follows:

upwardlyadverbUS /ˈʌpwərdli/

spatially or metaphorically from a lower to a higher position

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

WepronounUS /wiː/

the speaker together with one or more other people

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

whichpronounUS /wɪtʃ/

used to introduce a clause giving more about a thing just mentioned

From this reading We need certain apparatus to make connections, which will be constructed first.

wideadjectiveUS /waɪd/

having great (or a certain) extent from one side to the other

From this reading A base block (A, Fig. 43) 3 inches long, 2 inches wide and 3/4 inch thick, has on it, at one end, a binding screw (B), which holds a pair of fingers (C) of brass or copper, these fingers being bent upwardly and so arranged as to serve as fingers to hold a switch bar (D) between them.

willmodal verbUS /wɪl/

used to talk about the future, or about willingness

From this reading We need certain apparatus to make connections, which will be constructed first.

workverbUS /wɜːrk/

exert oneself by doing mental or physical work for a purpose or out of necessity

From this reading PUSH BUTTONS, SWITCHES, ANNUNCIATORS, BELLS AND LIKE APPARATUS SIMPLE SWITCHES.--We have now gone over the simpler or elementary outlines of electrical phenomena, and we may commence to do some of the practical work in the art.

Chapter 7 of Electricity for Boys by James Slough Zerbe holds 77 sentences, grouped into 16 reading sections of at most 5 sentences. The text is the source edition, unabridged, and the chapter records which sentences cover which part of the work so that nothing is dropped. Every word can be tapped for its pronunciation and dictionary entry.

What does chapter 7 of Electricity for Boys contain?

Chapter 7 holds 77 sentences of Electricity for Boys, unabridged, divided into 16 reading sections.

This page carries chapter 7 of Electricity for Boys by James Slough Zerbe exactly as it stands in the source edition, without abridgement. It runs to 77 sentences, grouped into 16 sections of at most 5 sentences so that a reader can take the chapter in steady, finishable pieces. The chapter also stores a coverage record mapping every one of its sentences to a part of the work, which is how the edition demonstrates that no line was dropped.

How do I study chapter 7 of Electricity for Boys?

Work through the 16 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 16 sections in this chapter is short enough to read once, hear once, and then re-read with the vocabulary in view. Tapping a word plays it alone and opens its dictionary entry with IPA, part of speech and meaning, so the reader is never forced to guess a pronunciation from spelling. Working section by section keeps a long chapter from becoming an undifferentiated wall of text, which is the usual reason a reader abandons a work of this period.

Can chapter 7 be read aloud to me?

Yes — every sentence and every individual word in chapter 7 can be played aloud in United States English.

Audio covers the whole chapter: any sentence can be played, and any single word within it can be played on its own. The voice uses United States English. For a work of this period that matters, because spelling is an unreliable guide to pronunciation for vocabulary that has fallen out of daily use, and a learner who guesses wrong tends to keep the error. Hearing the word in its own sentence, and then alone, settles it.

Questions about reading Electricity for Boys

Common questions about reading Electricity for Boys by James Slough Zerbe on this page, its source edition and its audio.

Is this the complete text of Electricity for Boys?

Yes. All 1152 sentences of Project Gutenberg eBook #22766 are kept, with a record of which sentences cover which part.

Which edition of Electricity for Boys is used?

Project Gutenberg eBook #22766, unabridged. The Project Gutenberg header, footer and licence are removed.

How long does Electricity for Boys take to read?

About 96 minutes of reading across 231 sections of 5 sentences each, at an unhurried pace.

How to read Electricity for Boys section by section

How to work through Electricity for Boys section by section, using the audio and the tap-to-define vocabulary.

  1. Open a chapter

    Choose one of the 17 chapters of Electricity for Boys to begin.

  2. Read one section

    Each section holds 5 sentences; read it once through.

  3. Listen and tap

    Play the section aloud, then tap any unfamiliar word for its entry.

Vocabulary met early in Electricity for Boys

Words and structures a reader meets early in Electricity for Boys, each tappable for pronunciation and meaning.

Study
A word that appears in the opening chapter of Electricity for Boys; the reader can tap it to hear it and see its dictionary entry.
Electricity
A word that appears in the opening chapter of Electricity for Boys; the reader can tap it to hear it and see its dictionary entry.
Historical
A word that appears in the opening chapter of Electricity for Boys; the reader can tap it to hear it and see its dictionary entry.
Profound
A word that appears in the opening chapter of Electricity for Boys; the reader can tap it to hear it and see its dictionary entry.