A factory tests two ways of spraying a protective coating onto metal ventilation panels. The panels are given the opposite charge to the charged droplets. The table shows the percentage of the spray that reaches each part of a panel or is lost.
| Spray used | Front of panel | Reverse of panel | Lost spray |
|---|---|---|---|
| Uncharged | 64% | 8% | 28% |
| Charged | 52% | 35% | 13% |
Explain what the results show about the effect of charging the spray and how charge causes these effects.
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.