Amazon.com description: Product Description: Electromagnetism is the force that causes attraction and repulsion between charged particles and between magnets. This force is responsible for almost all interactions, including how a car runs, how electronic equipment is powered, and how high-voltage electricity from a power plant is converted to a lower voltage for use in the home. Electricity and Magnetism explains the basics of electromagnetism, including what electricity and magnetism are and how they interact with each other, giving physics students a complete understand of this fundamental force.