O-LevelPhysicsMagnetism5054/12 · May/June 2019 · Q371 Mark
A coil is rotating in a magnetic field. The coil is connected to an oscilloscope. The diagram shows the trace on the screen of the oscilloscope. The coil now speeds up and rotates twice as fast. Which diagram shows the new trace?
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.
ADiagram A
BDiagram B
CDiagram C
DDiagram D
✓ Correct answer
B: Diagram B
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