Physics (AS & A Level) · Oct / Nov 2018 · Paper 52 · Question 2
9702
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The question as text
A student is investigating the current in a circuit. The circuit is set up as shown in Fig. 2.1. A E r Q P Fig. 2.1 Resistors, each of resistance R, are connected in parallel between P and Q. The current I is measured. The experiment is repeated for different numbers n of resistors between P and Q. It is suggested that I and n are related by the equation E = I n R r + c m where E is the electromotive force (e.m.f.) and r is the internal resistance of the power supply.
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2(a)[1]
2(b)[2]
2(c)(i)[2]
2(c)(ii)[2]
2(c)(iii)[2]
2(c)(iv)[2]
2(d)(i)[3]
2(d)(ii)[1]
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