Static Electricity

1. positive & negative charges

1.1. Like charges repel and unlike charges attract.

1.2. SI unit is coulomb(C)

2. Principles

2.1. Charging by Rubbing

2.2. Charging by Induction

3. Electric Field

3.1. An electric field is a region in which an electric charge experience a force

4. Hazards and Application

4.1. hazards

4.2. photocopier