Question

For a charged hollow metal sphere with total charge Q and radius R centered on the origin:
True False  the field on the outside is perpendicular to the surface.
True False  the field inside the shell is zero.
True False  the field for r > R will be the same as the field of a point charge, Q, at the origin.
True False  the charge is on the inside surface.
True False  only positive charges can be on the outside surface.
True False  inside the metal the field is strongest.

Answer 1

1) the field on the outside is perpendicular to the surface - True, field is radially outward

2) the field inside the shell is zero. - True, Charge lie on outisde the surface.

3) he field for r > R will be the same as the field of a point charge, Q, at the origin. - True, the formula reduces to a point charge field.

4) the charge is on the inside surface. -False , Contradicting point 2

5) only positive charges can be on the outside surface. - False. net charge can be negative as well

6) inside the metal the field is strongest. -False, meaningless