DP Physics (last assessment 2024)
Question 18M.2.SL.TZ1.c.ii
| Date | May 2018 | Marks available | [Maximum mark: 2] | Reference code | 18M.2.SL.TZ1.c.ii |
| Level | SL | Paper | 2 | Time zone | TZ1 |
| Command term | Explain | Question number | c.ii | Adapted from | N/A |
c.ii.
[Maximum mark: 2]
18M.2.SL.TZ1.c.ii
An electron moves in circular motion in a uniform magnetic field.
The velocity of the electron at point P is 6.8 × 105 m s–1 in the direction shown.
The magnitude of the magnetic field is 8.5 T.
Explain why the electron moves on a circular path.
[2]
Markscheme
the velocity of the electron is at right angles to the magnetic field
(therefore) there is a centripetal acceleration / force acting on the charge
OWTTE
[2 marks]
