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3 marksMagnetic Forces

CAPE Physics Unit 2 · 2001 · Paper 1 · Question 2(c)(i)

Motion of a proton in a circular orbit in a magnetic field.

Calculate the orbital speed of the proton.

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Other parts of this question

  1. 2(a)(i)Indicate on Figure 2 the direction of the velocity of the charged particle, v.[1 mark]
  2. 2(a)(ii)Indicate on Figure 2 the direction of the magnetic force acting on the charge particle, F.[1 mark]
  3. 2(b)Explain why the magnetic field does not affect the kinetic energy of the charged particle.[4 marks]
  4. 2(c)(ii)Calculate the period of revolution of the proton.[1 mark]

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