Question

what is the closed circuit ?

Answer 1

A proper electrical path In which the switch is closed and there is no break throughout the circuit and the current flows continuously is known as known as closed circuit.

Answer 2

the closed circuit work Like conducter of electricity it can joint battery, wire, and cell. this joint called closed circuit. and when it is not joint it's called open circuit.

so we can also say that, a circuit which conduct electricity etc.. is called closed circuit.