Two like poles repel each other and two unlike poles attract each other.

Every magnet has two poles: North and South.

Magnetic fields travel from north to south so be careful to label a diagram in this way with an arrow on the line of field pointing towards south.

A compass can be used to detect a magnetic field.

When electricity passes along a wire, it forms a magnetic field.

Using direct current will make the field in circles around the wire. This can be tested by using a compass.

You need to learn the magnetic rules which includes the right hand grip rule.

If a coil of wire is used a stronger magnetic field is produced.

You also need to know about some devices that work by electromagnetism such as an electric bell and relay.

If you are asked to draw the magnetic field around a magnet REMEMBER:
The lines must travel around the magnet.
They must not touch each other.
Label the magnetic field with arrows going from north to south.

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