Physics · May / June 2020 · Paper 22 · Question 8
5054
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Fig. 8.1 shows the circuit diagram of a temperature gauge. It contains an ammeter, a thermistor, a fixed resistor R and a battery. A thermistor R Fig. 8.1 The current is measured at different temperatures and a graph of the results is shown in Fig. 8.2. 20 0 0.005 0.010 0.015 0.020 0.025 40 60 80 temperature / °C current / A 100 Fig. 8.2
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