Magnetic Fields

A magnetic field is the area around a permanent magnet or a wire carrying a current in which a force is experienced.

 

The direction of the field at any point should be the direction of the force on a N pole.

The direction is shown by arrows - these point away from N pole towards S pole.

Magnetic field of two magnets with like poles facing.

Magnetic field of two magnets with unlike poles facing.

Contents

History of magnetism, What is a magnet
What do magnets do, Test for a magnet
The Earth's magnetic field
Theory of magnetism
Induced magnetism
Magnetic properties of iron and steel
Storing magnets
Making a magnet
Electro-magnets
Primary science applications
Fleming's Left Hand Rule
Self assessment
Comments, reflections and study action plan