A charged particle moves parallel to a magnetic field. The magnetic force on it is: A) Maximum B) Zero C) Dependent on speed only D) Dependent on charge only

A proton enters a uniform magnetic field directed into the page. If the proton moves upward, the initial magnetic force direction is: A) Up B) Down C) Left D) Right

An AC generator produces a sinusoidal voltage. Doubling the rotation speed will: A) Double frequency, double peak voltage B) Double frequency only C) Halve frequency, double voltage D) No change

The right-hand palm rule is used to find: A) Direction of induced current B) Direction of force on a current-carrying conductor in a field C) Direction of magnetic field around a wire D) Polarity of induced EMF Section B – Short Answer (20 marks) Answer in the spaces provided.

A wire carries current northward in a magnetic field pointing east. The force on the wire is: A) Up B) Down C) North D) Zero

Describe the energy conversion in: a) A DC motor b) An AC generator