Physics (AS & A Level) · Feb / March 2022 · Paper 12 · Question 36
9702Kirchhoff’s laws
A cell has an electromotive force (e.m.f.) of 8.0 V and negligible internal resistance. The cell forms part of a circuit, as shown. The reading V1 is 4.0 V and the reading V2 is also 4.0 V. What is the resistance of resistor R?
- A0.50 Ω
- B2.0 Ω
- C4.0 Ω
- D8.0 Ω
As printed in the paper
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Correct answer: B. 2.0 Ω
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