Physics · Oct / Nov 2020 · Paper 12 · Question 33

A 240 V mains circuit contains eight 60 W lamps in parallel. At the time when the lamps are switched on, the filaments are cold and the current is four times as large as the final steady current in the circuit. What is the initial current supplied by the mains?

1. A0.25 A
2. B1.0 A
3. C2.0 A
4. D8.0 A

As printed in the paper