f the small cylinder dividedby its distance, minus the charge on the corresponding cir-cumferential differential of area of the large cylinderdivided by its distance, or 2 7T r q dz 2 tt r qdz dV = Vrt+z2 VTF+z* where z is linear dimension in the axial direction. It maybe noted that the quantity on… … Fig. 29. of the smaller, and it avoids evolving an expression for thesurface density of the larger cylinder. The total potentialat P is then (since z is measured in both directions)_ /•*> /2 it r q dz _ 2 - r q dz \ V J0 \V?+F V& + *1 4 «rg [log. lt^fc*T = 4 7T rq log 7? e r CAPACITY. 63 The…
Electronics · Electricity
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