The potential difference across the terminals of a battery is when a current of flows…

PHYSICS · Multi-part · CBSE · Physics · Current Electricity · Current Electricity

Problem

The potential difference across the terminals of a battery is

8.4\,\text{V}

when a current of

1.50\,\text{A}

flows in the battery from the negative to the positive terminal. When a current of

3.50\,\text{A}

flows in the reverse direction, the potential difference is

9.4\,\text{V}

. (a) What is the internal resistance of the battery? (b) What is the emf of the battery?