JEE Main 2013 Physics question
A point charge of magnitude +1μC is fixed at (0, 0, 0). An isolated uncharged spherical conductor, is fixed with its center at (4, 0, 0). The potential and the induced electric field at the centre of the sphere is :
Answer: (3)
Solution
The conductor's net charge is zero and its induced charges are at the same distance from the centre, contributing no net potential there, so \frac{kq}{d}\frac{9×10^9×10^{-6}}{0.04}$ =
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