How Does an Electromagnet Work?

This video tutorial explains electromagnets, starting with a comparison to regular magnets. It describes how a wire carrying current creates a magnetic field and how wrapping the wire into a coil strengthens this field. The video further explains the use of ferromagnetic cores to enhance the magnetic field's strength. It also covers how to control electromagnets by adjusting current flow and coil properties. Safety precautions are highlighted, emphasizing the potential risks of overheating.

How can the strength of an electromagnet be changed?

What safety precautions should be taken when using electromagnets?