electrodynamometer

American  

[ih-lek-troh-dahy-nuh-mom-i-ter] / ɪˌlɛk troʊˌdaɪ nəˈmɒm ɪ tər /

noun

Electricity.

1. an instrument that uses the interaction between the magnetic fields produced by the currents in two coils or sets of coils to measure current, voltage, or power.

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electrodynamometer British  

/ ɪˌlɛktrəʊˌdaɪnəˈmɒmɪtə /

noun

1. an instrument that uses the interaction of the magnetic fields of two coils to measure electric current, voltage, or power

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Etymology

Origin of electrodynamometer

First recorded in 1875–80; electro- + dynamometer

Example Sentences

Weber in inventing the electrodynamometer, and later Lord Kelvin devised ampere balances for the measurement of electric currents based on the attraction between coils conveying electric currents.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" by Various

Similarly an alternating current ammeter can be calibrated by comparison with an electrodynamometer, the reading of which varies as the square of the current.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1 "Calhoun" to "Camoens" by Various

Weber about this date invented the electrodynamometer, and applied the mirror and scale method of reading deflections, and in co-operation with C.F.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" by Various