Fig. 8.1 depicts a circuit containing a battery, component X, component Y and the connecting wires. In the diagram, component X has arrows drawn towards it to show light striking it.
(a(i))[1]
State what component X is called.
(a(ii))[1]
In Fig. 8.1, draw the voltmeter symbol and show how it is connected in the circuit.
(a(iii)-1)[2]
Calculate the current flowing in the circuit.
(a(iii)-2)[1]
Calculate the potential difference across component Y.
(a(iv))[1]
State what effect this will have on the p.d. across component Y.
(b)[1]
Suggest one practical use for component X.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “light-dependent resistor (LDR)” …