A conducting sphere contains positive charge distributed uniformly over its surface. Which statements about the potential due to this sphere are true? All potentials are measured relative to infinity. (There may be more than one correct choice.)

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A conducting sphere contains positive charge distributed uniformly over its surface. Which statements about the potential due to this sphere are true? All potentials are measured relative to infinity. (There may be more than one correct choice.)

A) The potential is lowest, but not zero, at the center of the sphere.  B) The potential at the center of the sphere is zero.  C) The potential at the center of the sphere is the same as the potential at the surface.  D) The potential at the surface is higher than the potential at the center.  E) The potential at the center is the same as the potential at infinity

Answer:

C) The potential at the center of the sphere is the same as the potential at the surface.

Explanation:

When a conductive sphere has charges that distribute evenly on its surface, it means that its interior has a zero charge cap. As a result, the outside of this sphere has a charge distribution that will be the same if the center of the sphere were charged. In this way, the center and the surface of the sphere become identical in relation to the point charge potential. In other words, this means that the null interior of the sphere has a constant potential that makes the distribution of charges within the sphere exactly equal to the distribution of charges outside the sphere.

The statement that should be true regarding the sphere is The potential at the center of the sphere.

Potential at the sphere center:

Here the normal formula should be used i.e.  kq/R that should be determined by considering the potential at infinity also it does not contain any intervening dielectric like zero.

Also,

kq/R+c,

Here c is constant is necessary to fit with respect to the zero potential.

Hence, The statement that should be true regarding the sphere is The potential at the center of the sphere.

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