# Poynting Vector Equation Energy

This post categorized under Vector and posted on April 29th, 2019.

Where S is the divergence of the Poynting vector (energy flow) and JE is the rate at which the fields do work on a charged object (J is the current density corresponding to the motion of charge E is the electric field and is the dot product).The Larmor formula is used to calculate the total power radiated by a non relativistic point charge as it accelerates or decelerates. This is used in the branch of physics known as electrodynamics and is not to be confused with the Larmor precession from clvectorical nuclear magnetic resonance.Discussion maxwells equations. Warning big fancy calculus derivation approaching. If you dont like or dont understand vector calculus just skim through everything down to the paragraph before the last equation.

Electromagnetic (EM) waves are changing electric and magnetic fields transporting energy and momentum through vectore. EM waves are solutions of Maxwells equations which are the fundamental equations of electrodynamics.Frequently used equations in physics. Appropriate for secondary school students and higher. Mostly algebra based some trig some calculus some fancy calculus.David Tong Lectures on Electromagnetism. These lecture notes provide a comprehensive introduction to Electromagnetism aimed at undergraduates.

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