A potentiometer wire is $100 c m$ long hand a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obatined at $50 c m$ and $10 c m$ from the positive end of the wire in the two cases. The ratio of emfs is:

5 : 4

3 : 4

3 : 2

5 : 1

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A potentiometer wire is

100 c m

long hand a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obatined at

50 c m

and

10 c m

from the positive end of the wire in the two cases. The ratio of emfs is:

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Question Text	A potentiometer wire is $100 c m$ long hand a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obatined at $50 c m$ and $10 c m$ from the positive end of the wire in the two cases. The ratio of emfs is:
Answer Type	Text solution:1
Upvotes	150

Text solutionVerified

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