Electric Motors And Generators/Magnetic Field Concepts

Magnetic Field Concepts edit

An electromagnetic field is a region of space in which electrical charges experience forces. The classical definition of the electromagnetic field is given by the following equation



What this equation states, is that an electrical charge of size q experiences a force when in the presence of an electric field denoted by E. Furthermore if the charge is moving, with velocity v, it will experience a further force if in the presence of a magnetic field denoted by B. Therefore the force on a electric charge defines what the electric and magnetic fields are in a given region of space. Without the presence of a charged particle it could never be known what their magnitudes or directions were.

Further Reading on Magnetism edit

Further Reading on Electric Current edit