The potential at the center of the sphere is the same as the potential at the surface. Then the correct option is B.
The amount of labor required to move a unit signal from one part to another is defined as the potential difference between any two points.
If the conducting sphere contains a positive charge distributed uniformly over its surface
The charge inside the sphere is zero, so the electric field inside the sphere is zero
Hence potential is same ( E = - dV/dr)
The potential at the center of the sphere is the same as the potential at the surface.
More about the potential difference link is given below.
https://brainly.com/question/23716417
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