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In a potentiometer experiment, two cells...

In a potentiometer experiment, two cells connected in series get balanced at 9 m length of the wire. Now, if the connections of terminals of cell of lower emf are reversed, then the balancing length is obtained at 3 m. The ratio of emf's of two cells will be

A

`1:2`

B

`2:1`

C

`1:4`

D

`4:1`

Text Solution

Verified by Experts

The correct Answer is:
B
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FIITJEE-CURRENT ELECTRICITY-ASSIGNMENT PROBLEMS (OBJECTIVE)(Level-1)
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