Physics · May / June 2021 · Paper 61 · Question 2
0625
As printed in the paper
The question as text
A student investigates resistance. Fig. 2.1 shows the circuit she uses. A V power supply Fig. 2.1
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2(a)(i)[3]
V1 = 2.4
I1 = 0.50
V, A
2(a)(ii)[1]
R1 = (4.8) in Ω
2(b)[1]
RS = 9.29 or 9.3 stated to 2 / 3 sf
2(c)[1]
RP = 2.42
2(d)[2]
Resistors in parallel
Voltmeter and ammeter correctly placed, all symbols correct
2(e)[2]
Use another resistor
Add at least three more resistors (one at a time)
2(f)[1]
Correct symbol for variable resistor
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