(a(i))[1]
Complete Fig. 6.1 by sketching the circuit symbol for an LDR between points P and Q.
(a(ii))[2]
Explain how the voltmeter reading changes when the amount of light falling on the LDR rises.
(b(i))[2]
Show that the current through the $5.0\,\Omega$ resistor is $1.9\,\text{A}$.
(b(ii))[2]
Calculate the potential difference (p.d.) across points X and Y.