What is the equipment for an electromagnet?

Answer 1

A coated copper wire, something round and metal that can magnetize, and a source of Direct Current (DC)

First; wrap a thin, coated wire around a round metal object, such as a bolt or nail. Make sure said metal will stick to a magnet in the first place. Generally iron must be present in the metal for it magnetize, but other metals also work. Just stick with something that can rust though. So Once you have the wire wrapped around the bolt, find yourself a battery or some other source of Direct Current (Alternating Current has a totally different effect)

Attach one end of the wire to the positive lead and the other to the negative lead on your source, and a small magnetic field will be generated.

Electrons moving in a circular motion of almost any kind will generate some type of magnetic field. Increasing the Amperage or Voltage will increase the Size and Power of the Magnetic Field

Answer 2

Most loudspeakers use an electromagnet to vibrate the cone of the speaker. Many devices use a solenoid, which is an electromagnet pushing a rod, as the operator. All electric motors use electromagnets to produce the motion.