It results in Gauss's Law, which relates the divergence of the electric field ($\nabla \cdot \mathbf{E}$) to the charge density ($\rho$).

What is the physical meaning of the time component in the tensor equation-L.mp4

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1. What is the physical meaning of the time component in the tensor equation?
2. Which component of the tensor equation yields Gauss's Law? </aside>