CAPE Physics Unit 2 · 2002 · Paper 1 · Question 1(c)(ii)

The thermistor obeying Figure 1 is connected in a circuit with a 10 V supply, an ammeter, a switch S, a 200 Ω resistor, and a resistor R in series with the thermistor, as shown in Figure 2. The ammeter reads 100 mA when switch S is closed.

Determine the potential difference across the thermistor.

This question uses a figure or table from the paper — you'll see it when you practise.