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A charge Q is distributed over two concentric hollow spheres of radii r and (R>r) such that the surface densities are equal.The potential at the common centre a) frac{Q({{R}^{2}}+{{r}^{2}})}{4pi {{varepsilon }_{0}}(R+r)} b ...
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In a material science laboratory certain salts were melted in order to find the ideal decorative crystal for interstellar travel. Salt A melted at 399 degrees, Salt B melted at 814 Salt C melted at 414 And salt D melted ...
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You are given four boxes; containing four different types of substances. It is seen that the substance in the first one conducts electricity in its aqueous solution, the second conducts it in its native form/solid and the thi ...
