Physics · Oct / Nov 2023 · Paper 12 · Question 37

A wire is placed at right angles to a uniform magnetic field. [diagram: wire horizontal, magnetic field arrows pointing upwards] There is a current in the wire and it experiences a force. Beams of alpha-particles, beta-particles and neutrons are fired into the magnetic field in the same direction as the conventional current in the wire. Which beams experience a force that is initially in the same direction as the force experienced by the current-carrying wire? key ✓ = beam experiences a force in the same direction ✗ = beam does not experience a force in the same direction

1. Aalpha-particles ✓, beta-particles ✗, neutrons ✓
2. Balpha-particles ✓, beta-particles ✗, neutrons ✗
3. Calpha-particles ✗, beta-particles ✓, neutrons ✓
4. Dalpha-particles ✗, beta-particles ✓, neutrons ✗

As printed in the paper