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A potentiometer wire of length 400 cm ha...

A potentiometer wire of length 400 cm has a resistance of `8 Omega`. If a potential gradient of 0.5 V/m is maintained throughout the length of the wire, then the current flowing through the wire is

A

0.5 A

B

0.25 A

C

`1 A`

D

0.75 A

Text Solution

Verified by Experts

The correct Answer is:
B
Current `=(V)/(R )=(4xx0.5)/(8)=0.25 A`
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