Electric current is caused by moving electric charges. The effects of charge and electric fields can be investigated by looking at the forces they exert on conductors and insulators. Simple circuits - ...

What is it about the electrical system in a car that will make an otherwise intrepid hot rodder shudder with fear when confronted with an electrical problem? Whatever the phobia, most hot rodders make ...

Electrical components, like motors close motorA device which spins when current flows through it. Motors are used in fans, food processors and many other devices. and lamps close lampA component which ...