Which instrument detects the presence of electric current in a circuit
a) galvanometer
b) voltmeter
c) generator
d) magnetic compass needle
Answer is
A) galvanometer
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Answer:
A) galvanometer
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Answer:
Tangent galvanometer. A tangent galvanometer is an early measuring instrument used for the measurement of electric current. It works by using a compass needle to compare a magnetic field generated by the unknown current to the magnetic field of the Earth.
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