What does a solenoid convert electrical energy into?

A solenoid is a type of electromagnet that consists of a coil of wire wound into a tightly packed helix. When an electric current passes through the coil, it generates a magnetic field. This magnetic field can exert a force on a movable metal core, often referred to as a plunger, that is located within the solenoid.

The primary function of the solenoid is to convert electrical energy into mechanical motion. When the plunger is pulled into the coil by the magnetic field, it produces linear motion, which can be harnessed to perform tasks such as pressing a button, activating a switch, or moving components in machines. This conversion of electrical energy into mechanical energy makes solenoids important in various applications, including automotive technology, robotics, and household appliances.

The other forms of energy listed—heat, light, and chemical—are not directly associated with the fundamental operation of a solenoid, which specifically focuses on transforming electrical energy into the movement of objects.