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  4. Two copper spheres of same radius, one hollow and other solid are charged to the same potential. Which will have more charge ?

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Q. Two copper spheres of same radius, one hollow and other solid are charged to the same potential. Which will have more charge ?

Electrostatic Potential and Capacitance

Solution:

We know that the charges reside on the surface of a conductor. Here the two copper spheres are two conductors. So the charge uniformly distributed on the surface on the both sphere. We know that potential at the surface is V=kq/R. As the both spheres have same radius and charged to same potential so they will have equal charge.