What are the different components in an electrical circuit?

Science

Which component provides the power supply for the circuit?

What happens to the charges to make a static charge build up?

Particles in clouds rubbing against each other

What causes the build up in charge when lighting occurs?

when a metallic and plastic material are next to each other

when some materials rub against each other

How can we tell if a balloon is 'charged'?

What causes the build up in charge when lightning occurs?

To make the amount of charge balanced again

Why does static electricity need to be discharged?