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The Biot-Savart law which describes a magnetic field created by a displacement current: $$\frac{dB}{dV}=\frac{\mu_0\epsilon_0}{4\pi}\frac{\frac{∂E}{∂t}×r}{r^2}$$
What's the relativistically co-variant form of this equation?
Is the introduction of speed of light propagation delays enough, or are there other factors involved?
What's the relativistically co-variant form of this equation?
Is the introduction of speed of light propagation delays enough, or are there other factors involved?