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If the total charge enclosed by a surface is zero, does it imply that the electric field everywhere on the surface is zero ? Conversely, if the electric field everywhere on a surface is zero, does it imply that net charge inside is zero. |
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Answer» Solution :Electric flux `phi = oint_(S) vecE. DVECS =q/(epsilon_(0))` In left side of equation, `vecE` is electric FIELD on the SURFACE by charges inside and OUTSIDE the surface. But, in right side of equation, q is the charge enclosed by the surface. It means, if q = 0, then may `E ne 0`because there may be E DUE to charges outside the surface.But, if E = 0, then q = 0. (Charge enclosed by surface) |
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