A solid sphere of silver, which is a good conductor, has a spherical cavity at its center. There is a point charge at the center of the cavity. The silver sphere has a charge of +9.00 nC on its outer surface and a charge of -2.00 nC on the surface of the cavity. (a) What is the value of the point charge? (b) If the point charge moved to a different position within the cavity (not at the center), would this affect the total charge on the surface of the cavity or the total charge on the outer surface of the sphere?

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A solid sphere of silver, which is a good conductor, has a
spherical cavity at its center. There is a point charge at the center of the
cavity. The silver sphere has a charge of +9.00 nC on its outer surface
and a charge of -2.00 nC on the surface of the cavity. (a) What is the
value of the point charge? (b) If the point charge moved to a different
position within the cavity (not at the center), would this affect the total
charge on the surface of the cavity or the total charge on the outer surface
of the sphere?

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