Question

A hockey player trains on a nylon fiber surface. As he runs around, his shoes rub against the surface and he becomes positively charged.

1. Explain in terms of particles involved, how he becomes positively charged. 
2. State what happens to the nylon-fiber surface as it becomes positively charged.

Answer 1

1. On rubbing the surface, electrons are transferred from the shoe to the nylon fibre.This leaves the rubber shoes with a net positive charge.
2. The fibre become negatively charged in the process.