What is the function of a plunger in a solenoid?

The function of a plunger in a solenoid is to move devices, which is why this answer is correct. A solenoid consists of a coil of wire through which an electrical current passes, creating a magnetic field. This magnetic field attracts the plunger, which is typically made of ferromagnetic material. As the plunger moves within the solenoid’s coil, it can actuate other components, such as switches or valves, transforming electrical energy into mechanical movement.

This mechanical movement can be used in various applications, such as in automotive starters, door locks, and various automation systems, where it is essential to convert electrical signals into physical actions. Understanding this function is crucial for recognizing how solenoids operate in practical scenarios, particularly in automation and control systems.