O-LevelPhysicsMagnetism5054/12 · Oct/Nov 2025 · Q361 Mark
A beta-particle (β-particle) travels to the right at a constant speed. [Figure 36.1] Which field deflects the particle towards the top of the page?
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.
Ahorizontal magnetic field directed out of the page
Bhorizontal magnetic field directed into the page
Chorizontal electric field directed to the left
Dhorizontal electric field directed to the right
✓ Correct answer
A: horizontal magnetic field directed out of the page
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