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n identical cells, each of emf epsilon a...

n identical cells, each of emf `epsilon` and internal resistance r, are joined in series to from a closed circuit. One cell a is joined with reversed polarity. The potential difference across each cell, except A, is

A

`(2epsi)/(n)`

B

`(n-1)/(n)epsi`

C

`(n-2)/(n)epsi`

D

`(2n)/(n-2)epsi`

Text Solution

Verified by Experts

The correct Answer is:
A

`V_(r)=E-Ir`
`V_(r)=E-((n-2)E)/(nr)xxr`
`V_(r)=E-(nE)/(n)+(2E)/(n)`
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