Complete classic literature • Five-line readings • Clear US narration
VELMORA ACADEMY
Academy of Archival Languages & Memory Studies
Menu Close
Electricity for Boys
Electricity for Boys

Chapter XV · Chapter 15

Chapter 15 of Electricity for Boys is here in full — 63 sentences across 13 reading sections, with audio for every sentence and word.

Cover illustration for Electricity for Boys
Context Illustration Reading 1/12 · 5 lines
English subtitles · tap any word to listen 1 / 5
ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.
This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.
Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.
This resistance is measured in ohms, as explained in a preceding chapter, and it is this resistance which is utilized for electric heating.
RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.
0:00 / 0:00
Speed 0.75x
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 XV · Chapter 15

Chapter 15 of Electricity for Boys is here in full — 63 sentences across 13 reading sections, with audio for every sentence and word.

Reading 1/12 · 5 reading units · Lines 1–5

Line 1
ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.
Line 2
This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.
Line 3
Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.
/kənˈdʌktərz ˈɔːfər ə rɪˈzɪstəns tuː ðə ˈpæsədʒ ʌv ə ˈkɜːrənt dʒʌst ðə seɪm æz ˈwɔːtər faɪndz ə rɪˈzɪstəns ɪn paɪps θruː wɪtʃ ɪt ˈpæsəz/
Line 4
This resistance is measured in ohms, as explained in a preceding chapter, and it is this resistance which is utilized for electric heating.
/ðɪs rɪˈzɪstəns ɪz ˈmeʒərd ɪn oʊmz æz ɪkˈspleɪnd ɪn ə priˈsiːdɪŋ ˈtʃæptər ənd ɪt ɪz ðɪs rɪˈzɪstəns wɪtʃ ɪz ˈjuːtəlaɪzd fɔːr ɪˈlektrɪk ˈhiːtɪŋ/
Line 5
RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

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.

conductor noun US /kənˈdʌktər/

the person who leads a musical group

From this reading “ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.”

Conductors noun US /kənˈdʌktərz/

plural of “conductor” — the person who leads a musical group

From this reading “Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.”

electricity noun US /ɪˌlekˈtrɪsəti/

a physical phenomenon associated with stationary or moving electrons and protons

From this reading “ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.”

generating verb US /ˈdʒenəreɪtɪŋ/

-ing form of “generate” — bring into existence

From this reading “ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.”

heating noun US /ˈhiːtɪŋ/

the process of becoming warmer; a rising temperature

From this reading “ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.”

ohms noun US /oʊmz/

plural of “ohm” — a unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere

From this reading “This resistance is measured in ohms, as explained in a preceding chapter, and it is this resistance which is utilized for electric heating.”

substances noun US /ˈsʌbstənsəz/

plural of “substance” — the real physical matter of which a person or thing consists

From this reading “RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.”

utilized adjective US /ˈjuːtəlaɪzd/

put to use

From this reading “This resistance is measured in ohms, as explained in a preceding chapter, and it is this resistance which is utilized for electric heating.”

All words in this reading · 69

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.

AdeterminerUS /ə/

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

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

andconjunctionUS /ənd/

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

From this reading This resistance is measured in ohms, as explained in a preceding chapter, and it is this resistance which is utilized for electric heating.

anyadjectiveUS /ˈeni/

one or some or every or all without specification

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

asconjunctionUS /æz/

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

From this reading Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.

beauxiliary verbUS /biː/

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

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

butconjunctionUS /bʌt/

used to introduce something that contrasts with what came before

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

cannot

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

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

chapternounUS /ˈtʃæptər/

a subdivision of a written work; usually numbered and titled

From this reading This resistance is measured in ohms, as explained in a preceding chapter, and it is this resistance which is utilized for electric heating.

comparativelyadverbUS /kəmˈperətɪvli/

in a relative manner; by comparison to something else

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

conductornounUS /kənˈdʌktər/

the person who leads a musical group

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

ConductorsnounUS /kənˈdʌktərz/

plural of “conductor” — the person who leads a musical group

From this reading Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.

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 RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

currentnounUS /ˈkɜːrənt/

a flow of electricity through a conductor

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

degreenounUS /dɪˈɡriː/

a position on a scale of intensity or amount or quality

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

developedadjectiveUS /dɪˈveləpt/

being changed over time so as to be e.g. stronger or more complete or more useful

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

ELECTRICadjectiveUS /ɪˈlektrɪk/

using or providing or producing or transmitting or operated by electricity

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

ELECTRICITYnounUS /ɪˌlekˈtrɪsəti/

a physical phenomenon associated with stationary or moving electrons and protons

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

explainedverbUS /ɪkˈspleɪnd/

past form of “explain” — make plain and comprehensible

From this reading This resistance is measured in ohms, as explained in a preceding chapter, and it is this resistance which is utilized for electric heating.

findsnounUS /faɪndz/

plural of “find” — a productive insight

From this reading Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading This resistance is measured in ohms, as explained in a preceding chapter, and it is this resistance which is utilized for electric heating.

GENERATINGverbUS /ˈdʒenəreɪtɪŋ/

-ing form of “generate” — bring into existence

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

greateradjectiveUS /ˈɡreɪtər/

greater in size or importance or degree

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

HEATnounUS /hiːt/

a form of energy that is transferred by a difference in temperature

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

HEATINGnounUS /ˈhiːtɪŋ/

the process of becoming warmer; a rising temperature

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

INprepositionUS /ɪn/

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

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

ironnounUS /ˈaɪərn/

a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

isauxiliary verbUS /ɪz/

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

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

itpronounUS /ɪt/

a thing, animal, or idea already mentioned

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

justadverbUS /dʒʌst/

and nothing more

From this reading Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.

lessadverbUS /les/

used to form the comparative of some adjectives and adverbs

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

likeverbUS /laɪk/

prefer or wish to do something

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

maymodal verbUS /meɪ/

used to say something is possible, or to give permission

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

measuredadjectiveUS /ˈmeʒərd/

having notes of fixed rhythmic value

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

metalnounUS /ˈmetəl/

any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

moreadjectiveUS /mɔːr/

(comparative of “much” used with mass nouns) a quantifier meaning greater in size or amount or extent or degree

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

neverthelessadverbUS /ˌnevərðəˈles/

in spite of what has just been said

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

nextadjectiveUS /nekst/

immediately following in time or order

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

offerverbUS /ˈɔːfər/

make available or accessible, provide or furnish

From this reading Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.

offersnounUS /ˈɔːfərz/

plural of “offer” — the verbal act of offering

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

ohmsnounUS /oʊmz/

plural of “ohm” — a unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere

From this reading This resistance is measured in ohms, as explained in a preceding chapter, and it is this resistance which is utilized for electric heating.

orconjunctionUS /ɔːr/

used to join alternatives or possibilities

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

ordernounUS /ˈɔːrdər/

(often plural) a command given by a superior (e.g., a military or law enforcement officer) that must be obeyed

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

otheradjectiveUS /ˈʌðər/

not the same one or ones already mentioned or implied

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

passagenounUS /ˈpæsədʒ/

the act of passing from one state or place to the next

From this reading Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.

passesnounUS /ˈpæsəz/

plural of “pass” — (baseball) an advance to first base by a batter who receives four balls

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

pipesnounUS /paɪps/

plural of “pipe” — a tube with a small bowl at one end; used for smoking tobacco

From this reading Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.

pooradjectiveUS /puːr/

deserving or inciting pity

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

precedingadjectiveUS /priˈsiːdɪŋ/

existing or coming before

From this reading This resistance is measured in ohms, as explained in a preceding chapter, and it is this resistance which is utilized for electric heating.

presentverbUS /ˈprezənt/

give an exhibition of to an interested audience

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

resistancenounUS /rɪˈzɪstəns/

the action of opposing something that you disapprove or disagree with

From this reading Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.

sameadjectiveUS /seɪm/

Identical; not different.

From this reading Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.

SilvernounUS /ˈsɪlvər/

a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

smalladjectiveUS /smɔːl/

limited or below average in number or quantity or magnitude or extent

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

soconjunctionUS /soʊ/

for that reason; with the result that

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

SUBSTANCESnounUS /ˈsʌbstənsəz/

plural of “substance” — the real physical matter of which a person or thing consists

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

thanconjunctionUS /ðæn/

used to introduce the second part of a comparison

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

thatconjunctionUS /ðæt/

used to introduce what somebody said, thought, or felt

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

thedeterminerUS /ðə/

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

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

THERMO

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

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

ThisdeterminerUS /ðɪs/

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

From this reading This heat may be so small that it cannot be measured, but it is, nevertheless, present in a greater or less degree.

throughprepositionUS /θruː/

from one end or side of something to the other

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

toparticleUS /tuː/

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

From this reading Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.

utilizedadjectiveUS /ˈjuːtəlaɪzd/

put to use

From this reading This resistance is measured in ohms, as explained in a preceding chapter, and it is this resistance which is utilized for electric heating.

waternounUS /ˈwɔːtər/

binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent

From this reading Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.

WhenconjunctionUS /wen/

at the time that

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

whichpronounUS /wɪtʃ/

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

From this reading Conductors offer a resistance to the passage of a current, just the same as water finds a resistance in pipes through which it passes.

whileconjunctionUS /waɪl/

during the time that

From this reading RESISTANCE OF SUBSTANCES.--Silver offers less resistance to the passage of a current than any other metal, the next in order is copper, while iron is, comparatively, a poor conductor.

WIREnounUS /ˈwaɪər/

ligament made of metal and used to fasten things or make cages or fences etc

From this reading ELECTRIC HEATING, THERMO ELECTRICITY GENERATING HEAT IN A WIRE.--When a current of electricity passes through a conductor, like a wire, more or less heat is developed in the conductor.

Chapter 15 of Electricity for Boys by James Slough Zerbe holds 63 sentences, grouped into 13 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 15 of Electricity for Boys contain?

Chapter 15 holds 63 sentences of Electricity for Boys, unabridged, divided into 13 reading sections.

This page carries chapter 15 of Electricity for Boys by James Slough Zerbe exactly as it stands in the source edition, without abridgement. It runs to 63 sentences, grouped into 13 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 15 of Electricity for Boys?

Work through the 13 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 13 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 15 be read aloud to me?

Yes — every sentence and every individual word in chapter 15 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 0 sentences of Project Gutenberg eBook #? are kept, with a record of which sentences cover which part.

Which edition of Electricity for Boys is used?

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

How long does Electricity for Boys take to read?

About 5 minutes of reading across 0 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 0 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.

Chapter 1
One of the 0 chapters of Electricity for Boys, divided into 5-sentence reading sections.
Chapter 2
One of the 0 chapters of Electricity for Boys, divided into 5-sentence reading sections.
Chapter 3
One of the 0 chapters of Electricity for Boys, divided into 5-sentence reading sections.