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A potentiometer wire is 100 cm long and ...

A potentiometer wire is 100 cm long and a constant potential difference is mainained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cmand 10 cm from the positive end of the wire in the cases. The ratio of emf is

A

`5:4`

B

`3:4`

C

`3:2`

D

`5:1`

Text Solution

Verified by Experts

The correct Answer is:
C
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