Physics

Problem

A mobile charger operates at

5\,\text{V}

and

2\,\text{A}

and is used continuously for

3\,\text{h}

. How much electrical energy does it consume, expressed in kilowatt-hours (kWh)? a)

0.30\,\text{kWh}

0.003\,\text{kWh}

0.03\,\text{kWh}

3.0\,\text{kWh}