2.19 identify common materials which are electrical conductors or insulators, including metals and plastics

2.19 identify common materials which are electrical conductors or insulators, including metals and plastics

Conductors: Electrical conductors are materials that allow current to pass through them. Conductors have free electron diffusion to pass current. Metals like copper, silver, aluminium have free electrons and can conduct electricity.

Insulators: Insulators do not conduct electricity because they don’t have free electrons. Example of insulator are plastics, rubber, wood etc.