A(n) ____ is a device that uses low current to control a high-current circuit.
A) ohmmeter
B) relay
C) opening switch
D) coil

Question

Quizplus · Accepted Answer

A relay is a device that uses a small electrical current to control a higher electrical current. It works by using an electromagnet to open and close a switch in another circuit. This allows a low-power circuit to control a high-power circuit, making relays very useful in a variety of applications.

A(n) ____ Is a Device That Uses Low Current to Control