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Two sources of equal emf are connected t...

Two sources of equal emf are connected to an external resistance R. The internal resistance of the two sources are` R_(1) and R_(2) (R_(1) gt R_(1))`. If the potential difference across the source having internal resistance `R_(2)` is zero, then

A

`R=R_2xx(R_1+R_2)//(R_2-R_1)`

B

`R=R_2-R_1`

C

`R=R_1R_2//(R_1+R_2)`

D

`R=R_1R_2//(R_2-R_1)`

Text Solution

Verified by Experts

The correct Answer is:
B
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