The single four-dimensional tensor equation $\partial_\mu F^{\mu\nu} = K^\nu$ unifies Gauss's Law ($\nabla \cdot \mathbf{E} = \rho / \epsilon_0$) and the Ampère-Maxwell Law ($\nabla \times \mathbf{B} = \mu_0 \mathbf{J} + \mu_0 \epsilon_0 \frac{\partial \mathbf{E}}{\partial t}$) into one compact relativistic expression.
What two Maxwell's equations are unified by the single four-dimensional tensor equation-L.mp4
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