Electric Forces and Electric Fields2715.53Because of the spherical symmetry of the charge distribution, any electric field present will be radial in direction. If a field does exist at distance Rfrom the center, it is the same as if the net charge located within were concentrated as a point charge at the center of the inner sphere. Charge located at does not contribute to the field at . rR≤rR>rR=(a) At 1.00r=, cm0E=since static electric fields cannot exist within conducting materials. (b) The net charge located at
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