A point charge q0 is placed at the center of a hollow conducting uncharged sphere. 1) Where and what electric fields will exist? 2) Will charges appear on the sphere? 3) Will there be changes in the electric field inside and outside the sphere when a charge moves inside the sphere? 4) How will the field change inside and outside the sphere if the charge remains stationary and the outer surface of the sphere is grounded for a short time, and then the charge is carefully removed from the cavity of the sphere, without touching it, through a small hole? 5) Where and what charges on the sphere will exist if a point charge is brought from outside to an uncharged sphere?

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