A negatively charged toner particle moves through two regions, P and Q, inside a laser printer.
The table gives information about the electric field in each region. The field-line spacings are measured using the same scale in both regions.
| Region | Direction of electric field | Spacing between neighbouring field lines |
|---|---|---|
| P | upwards | 2.0 mm |
| Q | to the right | 6.0 mm |
State the direction of the electric force on the toner particle at P and at Q.
Explain why the size of the electric force on the toner particle is different at P and Q.
80 exam-style questions on Edexcel GCSE Physics 11.2 Uses, dangers and electric fields, covering 11.2.1 Uses of electrostatic charge, 11.2.2 Dangers of sparking, 11.2.3 Electric fields, and 11.2.4 Electric fields and static electricity. Each one has a worked solution and a mark scheme showing where the marks go.