February/March 2026 Paper 42

2026 · 11 questions · 49 parts · 80 marks

0/80 marks

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–/6 mks

2(a)(i)2(a)(ii)2(a)(iii)2(a)(iv)2(b)2(b)(i)2(b)(ii)

–/9 mks

3(a)(i)3(a)(ii)3(a)(iii)3(b)

–/7 mks

4(a)4(b)(i)4(b)(ii)4(c)

–/7 mks

5(a)5(b)(i)5(b)(ii)

–/8 mks

6(a)(i)6(a)(ii)6(a)(iii)6(b)6(b)(i)6(b)(ii)

–/7 mks

7(a)7(b)7(c)7(d)

–/7 mks

8(a)(i)8(a)(ii)8(b)8(b)(i)8(b)(ii)

–/8 mks

–/8 mks

10(a)10(a)(i)10(a)(ii)10(b)10(b)(i)10(b)(ii)

–/5 mks

11(a)11(b)11(b)(i)11(b)(ii)

–/8 mks

Context for question 7

Figure 7.1 shows two identical cells in series with a thermistor and a fixed resistor.

Figure 7.1, a circuit with two cells and a switch in series with an ammeter, a thermistor in series with a fixed resistor forming a parallel branch, and a voltmeter connected across that branch

The switch is closed. The reading on the voltmeter is 9.0 V. The reading on the ammeter is 4.6 mA.

7(a)Emf Internal ResistanceEasy2 marks

Determine the e.m.f. of one cell. Give the unit.

e.m.f.

Unit

7(b)Current Potential DifferenceEasy1 mark

Complete the sentence to define electric current. Electric current is the amount of ___ passing a point per unit ___.

7(c)Series Parallel Circuit AnalysisMedium3 marks

The resistance of the fixed resistor is 480

Ω

. Calculate the resistance of the thermistor.

Working

0 words

Resistance of thermistor

7(d)Potential Dividers SensorsEasy1 mark

The thermistor is placed in a beaker of ice. The temperature of the thermistor decreases. State how this change in temperature affects the readings on the voltmeter and ammeter.