A metallic sphere of radius R has a small bulge of hemispherical shape on its surface. The radius of the bulge is r. If a charge Q is given to the sph
A metallic sphere of radius R has a small bulge of hemispherical shape on its surface. The radius of the bulge is r. If a charge Q is given to the sphere, calculate the quantity of charge on the surface of the bulge. Assume that charge is uniformly distributed on the surface of the bulge (though it is wrong !) and also on the remaining surface of the sphere.
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