Electrodynamics is a branch of physics that studies the interactions between electric charges and currents. It's also known as classical electromagnetism. Electrodynamics is concerned with the effects of charged particles in motion and changing electric and magnetic fields. It's the physics of electromagnetic radiation, which includes radio waves, microwaves, infrared, visible light, ultraviolet, X–rays, and gamma rays. Electrodynamics describes light as electromagnetic radiation in the frequency range of approximately 1015 Hz. In this theory, matter is treated as continuous, with the... Show more Electrodynamics is a branch of physics that studies the interactions between electric charges and currents. It's also known as classical electromagnetism. Electrodynamics is concerned with the effects of charged particles in motion and changing electric and magnetic fields. It's the physics of electromagnetic radiation, which includes radio waves, microwaves, infrared, visible light, ultraviolet, X–rays, and gamma rays. Electrodynamics describes light as electromagnetic radiation in the frequency range of approximately 1015 Hz. In this theory, matter is treated as continuous, with the primary material response being the electric polarization. Electrodynamics is usually presented in the SI or Gauss system. In electrodynamics, Maxwell's equations and Poynting's theorem are both statements about energy and forces: Maxwell's equations: A set of coupled partial differential equations that describe how electric and magnetic fields are generated by charges, currents, and changes of the fields. The equations are the foundation of classical electromagnetism, classical optics, electric and magnetic circuits. Poynting's theorem: A statement of conservation of energy for electromagnetic fields. It states that in a given volume, the stored energy changes at a rate given by the work done on the charges within the volume, minus the rate at which energy leaves the volume. Poynting's theorem is the equivalent of all of Maxwell's equations which deal with forces. It divides all electromagnetic phenomena into two groups, with and without explicit time dependence. Show less
Electrodynamics is a branch of physics that studies the interactions between electric charges and currents. It's also known as classical electromagnetism. Electrodynamics is concerned with the effects of charged particles in motion and changing electric and magnetic fields.
It's the physics of electromagnetic radiation, which includes radio waves, microwaves, infrared, visible light, ultraviolet, X–rays, and gamma rays.
Electrodynamics describes light as electromagnetic radiation in the frequency range of approximately 1015 Hz. In this theory, matter is treated as continuous, with the primary material response being the electric polarization. Electrodynamics is usually presented in the SI or Gauss system.
In electrodynamics, Maxwell's equations and Poynting's theorem are both statements about energy and forces:
Maxwell's equations: A set of coupled partial differential equations that describe how electric and magnetic fields are generated by charges, currents, and changes of the fields. The equations are the foundation of classical electromagnetism, classical optics, electric and magnetic circuits.
Poynting's theorem: A statement of conservation of energy for electromagnetic fields. It states that in a given volume, the stored energy changes at a rate given by the work done on the charges within the volume, minus the rate at which energy leaves the volume.
Poynting's theorem is the equivalent of all of Maxwell's equations which deal with forces. It divides all electromagnetic phenomena into two groups, with and without explicit time dependence.
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