Question

difference between plug key and switch

Answer 1

switch is device that controls the flow of current in circuits. It is like a device that completes a circuit. like, if u want to on a fan then u need to switch on.
While a plug key has a base in which wires are connected. When the circuit is need to be on , then the wires are inserted between the base.

Answer 2

A Switch helps in making or breaking of the circuit while, a plug key helps in keeping a circuit open or closed for a longer duration.

Thanks