(a(i))[3]
Draw circuit symbols on Fig. 10.1 to show the correct connection of each meter in the circuit.
(a(ii))[3]
With a current of 0.25 A in the lamp and a potential difference (p.d.) of 4.5 V across it, Calculate the resistance of the lamp.
(b(i))[1]
State what component X is called.
(b(ii))[2]
Describe and explain how the teacher uses component X in order to investigate the lamp’s resistance.