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A potentiometer is an accurate and versa...

A potentiometer is an accurate and versatile device to make electrical measurements of `E.M.F.` because the method involves

A

Potential gradients

B

A condition of no current flow through the galvanometer

C

A combination of cells, galvanometer and resistance

D

Cells

Text Solution

Verified by Experts

The correct Answer is:
B
(b) When a potentiometer is connected across a circuit, in zero deflection condition the potentionmeter draws no current hernce the reading of potentiometer is accurate.
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