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The length of the potentiometer wire is ...

The length of the potentiometer wire is 600 cm and a current of 40 mA is flowing in it. When a cell of emf 2 V and internal resistance `10Omega` is balanced on this potentiometer the balance length is found to be 500 cm. The resistance of potentiometer wire will be

A

`20Omega`

B

`40Omega`

C

`60Omega`

D

`80Omega`

Text Solution

Verified by Experts

The correct Answer is:
C
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