A ________ is a type of electromagnetic device that has a movable iron core called a plunger.
A)analog meter
B)solenoid
C)relay
D)speaker

Question

Quizplus · Accepted Answer

Solenoids are electromagnetic devices that have a movable iron core called a plunger. This plunger can be used to either push or pull objects, which makes solenoids useful in a variety of applications such as door locks, valves, and switches. Analog meters, relays, and speakers are also types of electromagnetic devices, but they do not have a movable iron core like solenoids do.

A ________ Is a Type of Electromagnetic Device That Has