Magnetic forces, magnetic fields, and Faraday's law

Magnets and Magnetic Force
Magnetic field created by a current
Electric motors
Magnetic flux and Faraday's law
About this unit
Magnetic fields are extremely useful. The magnetic field of the Earth shields us from harmful radiation from the Sun, magnetic fields allow us to diagnose medical problems using an MRI, and magnetic fields are a key component in generating electrical power in most power plants. In this topic you'll learn about the forces, fields, and laws that makes these and so many other applications possible.