(a)[1]
Draw the thermistor symbol between terminals P and Q to complete Fig. 8.1.
(b)[1]
Calculate the e.m.f. of one cell.
(c(i))[3]
Work out the resistance of the thermistor.
(c(ii))[3]
Explain what can be deduced from this observation.
Physics 0625 · IGCSE · Electric circuits
Electric circuits — practice question
A learner assembles a circuit containing a 12 V battery, an 800 Ω resistor, a voltmeter and a thermistor. Fig. 8.1 is incomplete because the thermistor symbol has not been drawn.
The thermistor is connected across terminals P and Q.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The thermistor symbol is correctly placed between P and Q.” …
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