A-LevelPhysicsD.C. circuits9702/12 · Feb/Mar 2021 · Q331 Mark

A cell of negligible internal resistance is connected to resistors R₁, R₂ and R₃, as shown. The cell provides power to the circuit and power is dissipated in the resistors. [Figure 33.1] Which word equation must be correct?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Apower dissipated in R₁ = power dissipated in R₂ + power dissipated in R₃

Bpower dissipated in R₂ = power dissipated in R₃

Cpower output of cell = power dissipated in R₁ + power dissipated in R₂ + power dissipated in R₃

Dpower output of cell = power dissipated in R₁

✓ Correct answer

C: power output of cell = power dissipated in R₁ + power dissipated in R₂ + power dissipated in R₃

Oracle Prep sorts past-paper questions by topic, so you can drill D.C. circuits and see which topics are most likely to come up next.

Topic: D.C. circuits, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Feb/Mar 2021 Paper 1 Variant 2, question 33.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content