How would you describe an electromagnet?

An electromagnet is a type of magnet that produces a magnetic field only when electric current flows through it.

It is typically made by winding a coil of insulated wire around a soft iron core. When current passes through the coil, the iron core becomes magnetized and behaves like a magnet. When the current is switched off, the magnetism disappears.

This makes electromagnets different from permanent magnets, as their strength and presence can be controlled by adjusting the electric current.

Electromagnets are widely used in devices such as electric bells, motors, relays, and cranes for lifting heavy metal objects.