Electromagnetic Field Theory (often abbreviated as EMFT) or Electromagnetic Theory is a textbook authored by Dr. P. Dhananjayan. It is a common academic reference used by undergraduate engineering students in India, particularly within the Electrical and Electronics Engineering (EEE) and Electronics and Communication Engineering (ECE) branches. Book Details Author: Dr. P. Dhananjayan
. These equations are critical for understanding how energy propagates through space as electromagnetic waves. Guided Waves & Transmission Lines electromagnetic field theory by dhananjayan
A significant portion of EMFT involves understanding Electrostatics and Magnetostatics. In these sections, Dhananjayan details how stationary charges create potential and field intensity, and how steady currents produce magnetic flux. However, the true "magic" of the theory emerges in the study of Electromagnetic Waves. By solving Maxwell’s equations in various media, the theory explains how energy propagates through a vacuum at the speed of light—a concept that underpins all wireless communication. Engineering Applications Electromagnetic Field Theory (often abbreviated as EMFT )
to define electric field intensity and potential, while employing the Biot-Savart Law Ampere’s Circuital Law to describe magnetic field behavior around conductors. Time-Varying Fields & Maxwell’s Equations Design problems: Strengths
The text provides a systematic approach to electromagnetics, transitioning from static fields to dynamic, time-varying phenomena. Its structure typically includes: