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The Boy Electrician
The Boy Electrician

Chapter XV · Induction Coils

Chapter XV of The Boy Electrician, “Induction Coils,” is here in full — 238 sentences across 48 reading sections, with audio for every sentence and word.

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Context Illustration Reading 1/47 · 5 lines
English subtitles · tap any word to listen 1 / 5
A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.
The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.
The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.
The simplest means employable for raising the voltage of a battery high enough to produce a shock is the medical coil.
The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.
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LEARNER DICTIONARY
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The Boy Electrician

Chapter XV · Induction Coils

Chapter XV of The Boy Electrician, “Induction Coils,” is here in full — 238 sentences across 48 reading sections, with audio for every sentence and word.

Reading 1/47 · 5 reading units · Lines 1–5

Line 1
A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.
Line 2
The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.
Line 3
The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.
/ðə ˈhjuːmən ˈbɑːdi pəˈzesəz kənˈsɪdərəbəl rɪˈzɪstəns ənd ðə ˈvoʊltədʒ ʌv wʌn ɔːr tuː ˈɔːrdəneri selz ʌv ˈbætəri ɪz nɑːt səˈfɪʃənt tuː ˈoʊvərkʌm ðæt rɪˈzɪstəns ənd pæs ɪˈnʌf ˈkɜːrənt θruː ðə ˈbɑːdi tuː biː felt ənˈles ˈʌndər ɪkˈsepʃənəl kənˈdɪʃənz/
Line 4
The simplest means employable for raising the voltage of a battery high enough to produce a shock is the medical coil.
/ðə ˈsɪmpləst miːnz emˈplɔɪəbəl fɔːr ˈreɪzɪŋ ðə ˈvoʊltədʒ ʌv ə ˈbætəri haɪ ɪˈnʌf tuː prəˈduːs ə ʃɑːk ɪz ðə ˈmedəkəl kɔɪl/
Line 5
The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

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.

core noun US /kɔːr/

a small group of indispensable persons or things

From this reading “A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.”

employable noun US /emˈplɔɪəbəl/

a person who is qualified and ready to work

From this reading “The simplest means employable for raising the voltage of a battery high enough to produce a shock is the medical coil.”

induction noun US /ˌɪnˈdʌkʃən/

a formal entry into an organization or position or office

From this reading “A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.”

magnetic adjective US /mæɡˈnetɪk/

of or relating to or caused by magnetism

From this reading “The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.”

primary adjective US /ˈpraɪmeri/

of first rank or importance or value; direct and immediate rather than secondary

From this reading “A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.”

reread verb US /ˈriːˈriːd/

read anew; read again

From this reading “The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.”

secondary adjective US /ˈsekənderi/

being of second rank or importance or value; not direct or immediate

From this reading “A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.”

voltage noun US /ˈvoʊltədʒ/

the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts

From this reading “The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.”

Word partnerships in these lines

English keeps certain words together, and knowing the pair is worth more than knowing each word alone. Every partnership below was counted across our whole published library, and earns its place by appearing far more often than two unrelated words of the same frequency would.

Shown as this reading writes them, with the form the library counts, what kind of pairing it is, and how often it occurs.

human body adjective + noun

alternative names for the body of a human being

In this reading “The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.”

in diameter preposition + noun

In this reading “The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.”

consists of verb + particle counted as “consist of”

In this reading “A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.”

turn back verb + particle

retrace one's course

In this reading “The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.”

first step adjective + noun

the first of a series of actions

In this reading “The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.”

high enough adjective + noun

In this reading “The simplest means employable for raising the voltage of a battery high enough to produce a shock is the medical coil.”

All words in this reading · 94

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.

89

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

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

91

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

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread 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 Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

alreadyadverbUS /ɔːlˈredi/

prior to a specified or implied time

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

andeterminerUS /æn/

the form of “a” used before a word that begins with a vowel sound

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

andconjunctionUS /ənd/

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

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

asconjunctionUS /æz/

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

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

backadverbUS /bæk/

in or to or toward a former location

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

batterynounUS /ˈbætəri/

group of guns or missile launchers operated together at one place

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

beauxiliary verbUS /biː/

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

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

beenauxiliary verbUS /bɪn/

the past participle of “be”

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

bodynounUS /ˈbɑːdi/

the entire physical structure of an organism (an animal, plant, or human being)

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

cellsnounUS /selz/

plural of “cell” — any small compartment

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

ChapternounUS /ˈtʃæptər/

a subdivision of a written work; usually numbered and titled

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

CoilnounUS /kɔɪl/

a structure consisting of something wound in a continuous series of loops

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

conditionsnounUS /kənˈdɪʃənz/

the prevailing context that influences the performance or the outcome of a process

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

considerableadjectiveUS /kənˈsɪdərəbəl/

large or relatively large in number or amount or extent or degree

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

consistsverbUS /kənˈsɪsts/

third-person singular of “consist” — originate

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

corenounUS /kɔːr/

a small group of indispensable persons or things

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

currentnounUS /ˈkɜːrənt/

a flow of electricity through a conductor

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

diameternounUS /daɪˈæmətər/

the length of a straight line passing through the center of a circle and connecting two points on the circumference

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

employablenounUS /emˈplɔɪəbəl/

a person who is qualified and ready to work

From this reading The simplest means employable for raising the voltage of a battery high enough to produce a shock is the medical coil.

enoughnounUS /ɪˈnʌf/

an adequate quantity; a quantity that is large enough to achieve a purpose

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

exceptionaladjectiveUS /ɪkˈsepʃənəl/

far beyond what is usual in magnitude or degree

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

explainedverbUS /ɪkˈspleɪnd/

past form of “explain” — make plain and comprehensible

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

feltverbUS /felt/

mat together and make felt-like

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

firstadjectiveUS /fɜːrst/

preceding all others in time or space or degree

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

five-sixteenths

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

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

haveauxiliary verbUS /hæv/

used with a past participle to form the perfect tenses

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

highadjectiveUS /haɪ/

greater than normal in degree or intensity or amount

From this reading The simplest means employable for raising the voltage of a battery high enough to produce a shock is the medical coil.

humanadjectiveUS /ˈhjuːmən/

characteristic of humanity

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

inprepositionUS /ɪn/

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

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

inchnounUS /ɪntʃ/

a unit of length equal to one twelfth of a foot

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

inchesnounUS /ˈɪntʃəz/

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

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

inductionnounUS /ˌɪnˈdʌkʃən/

a formal entry into an organization or position or office

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

insideadjectiveUS /ˌɪnˈsaɪd/

relating to or being on the side closer to the center or within a defined space

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

interrupternoun

a device for automatically interrupting an electric current

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

isauxiliary verbUS /ɪz/

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

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

itpronounUS /ɪt/

a thing, animal, or idea already mentioned

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

lessadverbUS /les/

used to form the comparative of some adjectives and adverbs

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

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 The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

magneticadjectiveUS /mæɡˈnetɪk/

of or relating to or caused by magnetism

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

makingnounUS /ˈmeɪkɪŋ/

the act that results in something coming to be

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

meansnounUS /miːnz/

thing or person that acts to produce a particular effect or achieve an end

From this reading The simplest means employable for raising the voltage of a battery high enough to produce a shock is the medical coil.

MedicaladjectiveUS /ˈmedəkəl/

relating to the study or practice of medicine

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

mightmodal verbUS /maɪt/

used to say something is possible but not certain

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

moreadjectiveUS /mɔːr/

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

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

notadverbUS /nɑːt/

used to make a word, phrase, or sentence negative

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

nothingpronounUS /ˈnʌθɪŋ/

not one thing; not anything

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

onepronounUS /wʌn/

used to mean any person in general, including the speaker

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

one-halfnoun

one of two equal parts of a divisible whole

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

orconjunctionUS /ɔːr/

used to join alternatives or possibilities

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

ordinarynounUS /ˈɔːrdəneri/

a judge of a probate court

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

overcomeverbUS /ˈoʊvərkʌm/

win a victory over

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

pagesnounUS /ˈpeɪdʒəz/

plural of “page” — one side of one leaf (of a book or magazine or newspaper or letter etc.) or the written or pictorial matter it contains

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

papernounUS /ˈpeɪpər/

a material made of cellulose pulp derived mainly from wood or rags or certain grasses

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

passverbUS /pæs/

go across or through

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

possessesverbUS /pəˈzesəz/

third-person singular of “possess” — have as an attribute, knowledge, or skill

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

primaryadjectiveUS /ˈpraɪmeri/

of first rank or importance or value; direct and immediate rather than secondary

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

principlenounUS /ˈprɪnsəpəl/

a basic generalization that is accepted as true and that can be used as a basis for reasoning or conduct

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

produceverbUS /prəˈduːs/

bring forth or yield

From this reading The simplest means employable for raising the voltage of a battery high enough to produce a shock is the medical coil.

properlyadverbUS /ˈprɑːpərli/

in the right manner; correctly; suitably

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

raisingnounUS /ˈreɪzɪŋ/

the event of something being raised upward

From this reading The simplest means employable for raising the voltage of a battery high enough to produce a shock is the medical coil.

readersnounUS /ˈriːdərz/

plural of “reader” — a person who enjoys reading

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

rereadverbUS /ˈriːˈriːd/

read anew; read again

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

resistancenounUS /rɪˈzɪstəns/

the action of opposing something that you disapprove or disagree with

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

rollverbUS /roʊl/

move by turning over or rotating

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

secondaryadjectiveUS /ˈsekənderi/

being of second rank or importance or value; not direct or immediate

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

shocknounUS /ʃɑːk/

the feeling of distress and disbelief that you have when something bad happens accidentally

From this reading The simplest means employable for raising the voltage of a battery high enough to produce a shock is the medical coil.

shockingadjectiveUS /ˈʃɑːkɪŋ/

glaringly vivid and graphic; marked by sensationalism

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

simplestadjectiveUS /ˈsɪmpləst/

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

From this reading The simplest means employable for raising the voltage of a battery high enough to produce a shock is the medical coil.

smalladjectiveUS /smɔːl/

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

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

stepnounUS /step/

any maneuver made as part of progress toward a goal

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

suchdeterminerUS /sʌtʃ/

of the kind already mentioned

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

sufficientadjectiveUS /səˈfɪʃənt/

of a quantity that can fulfill a need or requirement but without being abundant

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

termedverbUS /tɜːrmd/

past form of “term” — name formally or designate with a term

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

thanconjunctionUS /ðæn/

used to introduce the second part of a comparison

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

thatconjunctionUS /ðæt/

used to introduce what somebody said, thought, or felt

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

ThedeterminerUS /ðə/

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

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

thempronounUS /ðem/

the people or things already mentioned, as the object

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

throughprepositionUS /θruː/

from one end or side of something to the other

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

toparticleUS /tuː/

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

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

tubenounUS /tuːb/

conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

turnverbUS /tɜːrn/

change orientation or direction, also in the abstract sense

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

twonounUS /tuː/

the cardinal number that is the sum of one and one or a numeral representing this number

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

underprepositionUS /ˈʌndər/

below or beneath something; less than

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

unlessconjunctionUS /ənˈles/

except if; if not

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

upadjectiveUS /ʌp/

being or moving higher in position or greater in some value; being above a former position or level

From this reading The first step in making such a coil is to roll up a paper tube, five-sixteenths of an inch in diameter inside, and two and one-half inches long.

VnounUS /viː/

a unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

voltagenounUS /ˈvoʊltədʒ/

the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts

From this reading The human body possesses considerable resistance, and the voltage of one or two ordinary cells of battery is not sufficient to overcome that resistance and pass enough current through the body to be felt, unless under exceptional conditions.

welladverbUS /wel/

(often used as a combining form) in a good or proper or satisfactory manner or to a high standard (“good” is a nonstandard dialectal variant for “well”)

From this reading The principle of an induction coil and that of magnetic induction have already been explained in Chapter V. It might be well for the readers to turn back to pages 89-91 and reread them.

windingadjectiveUS /ˈwaɪndɪŋ/

marked by repeated turns and bends

From this reading A Medical Coil or shocking coil, as it is properly termed, is nothing more or less than a small induction coil, and consists of a core, a primary winding, a secondary winding, and an interrupter.

Chapter 15 of The Boy Electrician by Alfred Powell Morgan holds 238 sentences, grouped into 48 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 The Boy Electrician contain?

Chapter 15 holds 238 sentences of The Boy Electrician, unabridged, divided into 48 reading sections.

This page carries chapter 15 of The Boy Electrician by Alfred Powell Morgan exactly as it stands in the source edition, without abridgement. It runs to 238 sentences, grouped into 48 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 The Boy Electrician?

Work through the 48 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 48 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.

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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.

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Common questions about reading The Boy Electrician by Alfred Powell Morgan on this page, its source edition and its audio.

Is this the complete text of The Boy Electrician?

Yes. All 4088 sentences of Project Gutenberg eBook #63207 are kept, with a record of which sentences cover which part.

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Project Gutenberg eBook #63207, unabridged. The Project Gutenberg header, footer and licence are removed.

How long does The Boy Electrician take to read?

About 340 minutes of reading across 818 sections of 5 sentences each, at an unhurried pace.

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Vocabulary met early in The Boy Electrician

Words and structures a reader meets early in The Boy Electrician, each tappable for pronunciation and meaning.

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