A solenoid is a relay with a mechanical action.

Name: A solenoid is a relay with a mechanical action.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

A solenoid is a type of relay that uses a coil of wire to create a magnetic field when an electrical current is passed through it. This magnetic field pulls on a plunger or armature, which produces a mechanical action, such as opening or closing a switch or valve. So, a solenoid is essentially a relay with a mechanical component.

A Solenoid Is a Relay with a Mechanical Action