A relay is a device that ________.
A)isolates the actuating signal from the control signal
B)has a coil to actuate some contacts that control other circuits
C)uses an electromagnet to open and close contacts
D)all of these

Question

Quizplus · Accepted Answer

A relay is a device that isolates the actuating signal from the control signal, has a coil to actuate some contacts that control other circuits, and uses an electromagnet to open and close contacts. Therefore, all of these are true statements about relays.

A Relay Is a Device That ________