Question

Name the device which detect the presence of current in a circuit

Answer 1

Galvanometer can detect he presence of current in a circuit.

Hope it helps you

Answer 2

Galvanometer is the correct answer for your question.

Galvanometer is an electromechanical device that is used to detect small electrical current. It points out the flow of current in a circuit through a pointer when electric current flows through a coil that is kept in a constant magnetic field. Galvanometer was first invented by Johann Schweigger back in 1820.