Question

What is an electromagnet?
GPT 3.5
An electromagnet is a type of magnet that is created by running electricity through a coil of wire. When an electric current flows through the wire, it creates a magnetic field around the coil, which then acts like a magnet. The strength of the magnetic field can be controlled by adjusting the amount of current flowing through the wire. Electromagnets are used in a variety of applications, such as in power generators, electric motors, speakers, and MRI machines.