During the manufacturing of protective visors, a sheet of protective polyethylene mask is peeled off a thick polycarbonate plate. As the two materials are separated, they both become electrically charged.
Explain how the polyethylene mask and the polycarbonate plate become charged during this peeling process.
If the partially peeled polyethylene mask is released, it swings back and clings to the polycarbonate plate. Explain why the mask moves back towards the plate.
31 exam-style questions on Edexcel IGCSE Physics Electric charge. Each one has a worked solution and a mark scheme showing where the marks go.