User:Chela5808/My sandbox Sam6
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OUTPUT (Before any styling by hand)
Created from PDF via Acrobat SaveAsXMLMapping table version: 28-February-2003Let’s collect all the key equations, which contain all of electrostatics and magnetostatics, together in one nice little box. On introducing µ0 =1/µ¯0 , which is the magnetic permeability of free space, we obtain the standard forms:
div E = ρ/ǫ0 (c) div B =0
curl E = 0 (d) curl B = µ0j
That’s all we need in order to calculate the E and B ﬁelds arising from any given distribution of charges and steady currents – throughout the whole of empty space! They contain Gauss’s law, Amp`ere’s law, and everything we’ve done so far, including the applications we’ve made to particular systems like charged spheres and plates. current-carrying wires, and so on.