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what is the Principle of potentiometer

what is the 
Principle of potentiometer

Grade:12

1 Answers

gdbusher
100 Points
5 years ago
A battery Bt is connected between the ends A and B of a potentiometer wire through a key K. A steady current I flows through the potentiometer wire . This forms the primary circuit. A primary cell is connected in series with the positive terminal A of the potentiometer, a galvanometer, high resistance and jockey. This forms the secondary circuit.

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