While having a discussion, Technician A says that a solenoid has contact points, whereas a relay uses a movable iron piston attached to a contact disc. Technician B says that a relay has contact points, whereas a solenoid uses a steel piston moved against a contact disc by magnetism. Who is correct?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question

Quizplus · Accepted Answer

Technician B is correct. A relay typically has contact points that open or close circuits, while a solenoid uses a steel piston moved by magnetic force to perform mechanical work.

While Having a Discussion, Technician a Says That a Solenoid