Tombe, Frederick David
Mechanics / Electrodynamics
September 25, 2022
Poynting's vector, Poynting's Theorem, cable telegraphy, wireless telegraphy, Faraday's law of induction, Maxwell's equations, aethereal vortices, electromagnetic wave equations, telegrapher's equations, displacement current
The Poynting vector, S = E×H, represents the rate of flow of electromagnetic energy per unit area per unit time. It appears in Poynting’s theorem because of the involvement of Ampère’s circuital law and Faraday’s law of time-varying electromagnetic induction. It will now be investigated as to whether or not the Poynting vector has any significance if the E field is an electrostatic field, or would it just amount to multiplying apples and bananas?