CUET Preparation Today
A cell of e.m.f E and internal resistance r is connected across a resistance r. The potential difference between the terminals of the cell must be |
E E/2 E/4 3E/2 |
E/2 |
$ I = \frac{E}{2r}$ $ V = E -Ir = E - \frac{E}{2} = \frac{E}{2} $ |
