An electron possesses in negative charge of

Which of the following is a conductor of electricity?

Substance through which electricity can not flow are called:

Which of the following is an insulator ?

What should be present in a substance to make it a conductor of electricity?

Do not use appliances, if

A component which is used to close or break a circuit, is

A diagram drawn by using symbols which represents electrical components is called.

A short thin piece of wire which is heated up and melt by the following of electric current in it ,is called