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OpenStudy (anonymous):

An electron is projected from a distance with initial velocity u parallel to a uniformly charged flat conducting plate as shown. If it strikes the plate after travelling a distance l along the direction of projection, the surface charge density of the plate is equal to - a)2d (ep)mu^2/el^2 b)2d(ep)mu/el c)d(ep)mu^2/el d)d(ep)mu/el; where ep = epsilon not

OpenStudy (anonymous):

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