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A potentiometer having a wire of 4 m len...

A potentiometer having a wire of 4 m lengths is connected to the terminals of a battery with steady voltage. A leclanche cell has a null point at 1m. If the length of the potentiometer wire is increased by 1 m, the position of the null points is

A

1.5m

B

1.25m

C

10.05m

D

1.31 m

Text Solution

Verified by Experts

The correct Answer is:
B
`l(alpha)L rArr l_(1)/l_(2) = L_(1) /L_(2)`
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