Electromagnetism
Maxwell's Equations
The unified laws of electromagnetism.
∇·E=ρ/ε₀, ∇·B=0, ∇×E=−∂B/∂t, ∇×B=μ₀J+μ₀ε₀∂E/∂t
What it means
Maxwell's four equations describe how electric and magnetic fields are generated by charges and currents and how they propagate as light.
Variables
| E | electric field |
| B | magnetic field |
| ρ | charge density |
| J | current density |
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