Physics 7407: Electricity Topical Past Paper Questions
AQA AS Physics (7407) past-paper questions on Electricity, free. This topic is frequently examined across 9 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A student investigates the characteristics of a power supply. The experimental data are plotted on a graph with: • pd (potential difference) across the power supply plotted on the y-axis • current in the power supply plotted on the x-axis. The axes intersect at (0,0). What featur…
The diagram shows a circuit containing three resistors X, Y and Z. X and Y each have resistance R. Z has resistance $ 2R $. What is $ \frac{\text{power in } \mathbf{X}}{\text{power in } \mathbf{Z}} $? A $ \frac{1}{4} $ B $ \frac{1}{2} $ C 2 D 4 [1 mark]
A practical power supply provides a steady current I for a time t to an external circuit. The emf of the power supply during t is equivalent to [1 mark] A the energy dissipated in the external circuit. B the energy dissipated in the whole circuit. C the energy dissipated in the w…
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