A-LevelPhysicsD.C. circuitsMay/June 2018Paper 1 Q321 Mark
The power output of an electrical supply is 2.4 kW at a potential difference (p.d.) of 240 V. The two wires between the supply and a kettle each have a resistance of 0.50 Ω, as shown. [Diagram] What is the power supplied to the kettle and what is the p.d. across the kettle?
A2.3, 230
B2.3, 235
C2.4, 230
D2.4, 235
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The correct answer is A. This question tests the candidate's understanding of d.c. circuits within the Physicssyllabus. The examiner's mark scheme requires...
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