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Question: The e.m.f. of a cell is E volts and internal resistance is \(r\) ohm. The resistance in external cir...

The e.m.f. of a cell is E volts and internal resistance is rr ohm. The resistance in external circuit is alsorr ohm. The p.d. across the cell will be

A

E/2

B

2E

C

4E

D

E/4

Answer

E/2

Explanation

Solution

Since both the resistors are same, therefore potential difference V=E2V = \frac { E } { 2 }