ABOUT THE SUBJECT

INTRODUCTION

An electromagnetic field is a non-quantum field produced by moving electric charges. The electromagnetic field propagates with the velocity of speed of light and interacts with charges and currents. Its quantum counterpart is one of the four fundamental forces of nature. In any application the field exists is a combination of both electric field and magnetic field. The electric field is produced by stationary charges and the magnetic field by moving charges in the form of currents. The Electric and magnetic fields are expressed as the sources of the field. The behavior of charges and currents interaction with the electromagnetic field is described by Maxwell's equations and the Lorentz force law.

Lorentz force (or electromagnetic force) is the combination of electric and magnetic force on a point charge due to electromagnetic fields. Electromagnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field.