A-LevelPhysicsD.C. circuitsMay/June 2022Paper 1 Q321 Mark
The circuit diagrams show two lamps X and Y each connected to a cell. The current in lamp X is 0.50 A and its resistance is 9.6 Ω. The current in lamp Y is 3.0 A and its resistance is 1.2 Ω. [Figure 32.1] What is the ratio power in lamp X / power in lamp Y?
A0.22
B0.75
C1.3
D4.5
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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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