A cell of unknown emf is connected to a resistor and the current observed is

PHYSICS · Subjective · A Level · Physics · Electricity · Electricity

Problem

A cell of unknown emf is connected to a

3\,\Omega

resistor and the current observed is

2.0\,\text{A}

. If the internal resistance of the cell is

0.5\,\Omega

, determine the emf of the cell.