Find the work done by an electric current in a time of $t = 5$ minutes at a voltage of $U = 220$ V and a current of $I = 2$ A.
Work done by an electric current:
$$A = UIt$$
The time in seconds: $t = 5 \text{ min} = 300$ s.
$$A = 220 \cdot 2 \cdot 300 = 132\,000 \text{ J} = 132 \text{ kJ}$$
$A = 132$ kJ (132 000 J)