Four laws unifying electricity, magnetism and light.
Gauss's law (∇·D=ρ), Gauss for magnetism (∇·B=0), Faraday's law (∇×E=-∂B/∂t) and Ampère-Maxwell (∇×H=J+∂D/∂t) govern all classical electromagnetism. Maxwell's displacement current predicts waves.
Light is an electromagnetic wave, derived from these equations.
Maxwell's equations describe all classical electromagnetism, so they explain motors, antennas and light in one framework.
Four laws unifying electricity, magnetism and light.
Maxwell's equations describe all classical electromagnetism, so they explain motors, antennas and light in one framework.
They unify electricity, magnetism and light, and they predict electromagnetic waves that travel at the speed of light.
Rarely. Simple geometries use analytic solutions, but most designs use numerical tools that solve the equations directly.
Typical applications include deriving the speed of light from electric and magnetic constants, designing a coil using the magnetic field relationship and analysing an antenna using the wave equation derived from the laws.
Study "Electromagnetic waves" first (topic 92 of 106 in Electrical Engineering). It covers the groundwork this topic builds on.
Constitutive relations D=εE, B=μH. Boundary conditions. Wave equation from the curl equations.
Light is an electromagnetic wave, derived from these equations.
The next topic is "Poynting vector", which builds directly on this one.
It is classed as Advanced in Electrical Engineering (topic 93 of 106). It is an advanced topic. It assumes you are comfortable with the intermediate topics in Electrical Engineering.
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