A paint sprayer coats a steel garden gate. Every droplet carries the same sign of charge, and the gate has the opposite charge. The sprayer is adjusted so that each droplet carries more charge than before. The droplet size and paint flow rate do not change.
Which statement correctly describes the forces acting in the spray after the adjustment?
Droplets become more strongly attracted to one another, while attraction to the gate becomes stronger.
Repulsion between droplets becomes stronger, while the gate repels droplets more strongly.
Repulsion between droplets becomes weaker, while attraction to the gate becomes stronger.
Repulsion between droplets becomes stronger, while attraction to the gate becomes stronger.
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.