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A potentiometer is an accurate and versa...

A potentiometer is an accurate and versatile devices to make electrical measurement of `E.M.F.` become the method involves

A

cells

B

potential gradients

C

a coundition of no current flow through the galvanmeter

D

a coundition of cells galvanmeter resistance

Text Solution

Verified by Experts

The correct Answer is:
C
Reading of potentiometer is accurate becomes while taking readings, no current flow through the galvanometer
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