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The potentiometer wire 10m long and 20 o...

The potentiometer wire 10m long and 20 ogm resistance is connected to a 3 volt emf battery and a 10ohm resistance. The value of potential gradient in volt/m of the wire will be

A

1

B

0.2

C

0.1

D

0.02

Text Solution

Verified by Experts

The correct Answer is:
B
`x=3/(20+10) 20/10=0.2 V//m`
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RESONANCE-CURRENT ELECTRICITY-Exercise
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