(a(i))[2]
Calculate the current flowing through the resistor.
(a(ii))[2]
Calculate the current supplied by the power supply.
(b(i))[1]
A second lamp is included in the circuit shown in Fig. 6.1. The second lamp is in series with the $60\,\Omega$ resistor, but it is not in series with lamp L. In the space below, draw a circuit diagram of this new circuit.
(b(ii))[1]
The two lamps are identical. Explain why the second lamp is dimmer than lamp L. You do not need to carry out a calculation.