A farmer uses an electrostatic sprayer to spray insecticide onto a crop.
The sprayer gives each droplet of insecticide a positive charge.
State whether the droplets attract or repel each other.
Give a reason for your answer.
The droplets are attracted to the leaves of the crop.
State the type of charge on the leaves.
Give one advantage to the farmer of using charged droplets instead of uncharged droplets.
Static electricity can also be dangerous.
Name one everyday situation where a spark caused by static electricity could be dangerous.
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.