Electricity produces magnetism.


The electricity current flowing through an electric circuit creates a field.
This circuit acts like a but with a weak force of atraction.
If we want to make the magnetic field stronger, we can turn the wire in , making a coil.
If we put an iron inside a coil, the atraction increases and it becomes very strong, like a real magnet. This is an .
When the electric current flowing, the electromagnet loses its magnetism.

Magnetism produces electricity.

Michael Faraday discovered that the moving a magnetic field produces .
He connected a coil of copper to a device that measured electricity.
Then he pushed a magnet into the of the coil and the needle of the meter moved.

Electromagnetic generators.
Some electromagnetic generators produce electricity by moving a magnet inside a .
Other devices generate electricity by turning a coil between magnets.