O-LevelPhysicsMagnetism5054/12 · May/June 2025 · Q321 Mark
A square coil is placed in a horizontal uniform magnetic field. The plane of the coil is perpendicular to the magnetic field. [Figure 32.1 - Diagram of square coil in magnetic field] The coil is now rotated about an axis through P at a steady rate. The coil rotates through 180°. Which diagram shows how the electromotive force (e.m.f.) induced in the coil varies as it rotates through 180°?
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.
A[Diagram option A]
B[Diagram option B]
C[Diagram option C]
D[Diagram option D]
✓ Correct answer
A: [Diagram option A]
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