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In comparing emf's of 2 cells with the h...

In comparing emf's of 2 cells with the helf of potentiometer, at the balance point, the current flowing through the wire is taken from

A

any one of these cells

B

boith of these cells

C

battery in the primary circuit

D

From an unknown source.

Text Solution

Verified by Experts

The correct Answer is:
C
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