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A potentiometer has uniform potential gr...

A potentiometer has uniform potential gradient across it. Two cells connected in series (i) to support each other and (ii) to oppose each other are balanced over 6 m and 2 m respectively on the potentiometer wire. The e.m.f.’s of the cells are in the ratio of

A

`1:2`

B

`1:1`

C

`3:1`

D

`2:1`

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TARGET PUBLICATION-CURRENT ELECTRICITY -Competitive Thinking
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