A potential divider is formed by wiring a light-dependent resistor (LDR) and a thermistor in series.
(a)[2]
Define potential difference (p.d.) in words.
(b)[1]
Describe how the reading on the voltmeter can be used to determine the p.d. across the thermistor.
(c(i))[1]
State how the light intensity incident on the LDR and the temperature of the thermistor have changed.
(c(ii))[3]
Explain what happens to the voltmeter reading.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The work done on a unit charge as it passes through a component” …