connected in the secondary circuit of a ...

connected in the secondary circuit of a potentiometer one at a time and the balancing length are respectively `400cm` and 440cm .The emf of the cell A is 1.08 V. The emf of the second cell B in volt is

`1.08`

`1.188`

`11.28`

`12.8`

Text Solution

Verified by Experts

The correct Answer is:

1,2,3…., n are connected in series
The equivalent resistance of the combination =` n(n+1)/(2)`

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