Monday 2 July 2018

electromagnetism - What is an electromagnetic field?


I know what is an electric field. It exerts a force over distance between electric charged particles.


I know what is a magnetic field. It exerts a force over distance between particles with magnetic dipole moments.


I don't know how to show the interaction over distance between EM radiation and what? The absorption of a photon by an electron hardly one can call a force over distance. Maybe the expression EM field is a comprehensive term for electric and for magnetic fields? The claimed EM field in QM seems not to be a field in the meaning of influence nor force of what's ever.





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