How do engineers use electromagnets?

Engineers use electromagnets in various applications, including motors, generators, and magnetic levitation systems. They leverage the ability of electromagnets to create a controllable magnetic field, which can be used to convert electrical energy into mechanical motion or vice versa. Additionally, electromagnets are essential in devices like relays and solenoids, where they enable the operation of switches and other mechanisms through remote control. Their versatility and ability to be turned on or off make them valuable in numerous technological innovations.