Physics (AS & A Level) · Oct / Nov 2019 · Paper 52 · Question 2
9702
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The question as text
A student is investigating how the resistance of a thermistor varies with temperature. The thermistor is placed in water, as shown in Fig. 2.1. heat water beaker thermistor to electrical circuit Fig. 2.1 The thermistor is connected to a battery with electromotive force (e.m.f.) E and negligible internal resistance. The current I in the thermistor is measured. The resistance R of the thermistor is then determined using the expression R = E I . The experiment is repeated for different temperatures of the water. It is suggested that the resistance R of the thermistor and the thermodynamic temperature T are related by the equation R = pT q where p and q are constants.
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2(a)[1]
2(b)[4]
2(c)(i)[2]
2(c)(ii)[2]
2(c)(iii)[2]
2(c)(iv)[1]
2(d)[2]
2(e)[1]
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