Physics

Problem

A battery does

1.8\,\text{kJ}

of work while supplying a steady current of

300\,\text{mA}

for

2\,\text{minutes}

. Calculate the average potential difference across the battery terminals. a)

30\,\text{V}

50\,\text{V}

500\,\text{V}

5\,\text{V}