difference between the plates is V . Point A is twice as far from the negative plate as is point B .
3 . Which of the following statements about the electric potential between the plates is correct?
(A) The electric potential is the same at points A and B .
(B) The electric potential is two times larger at A than at B .
(C) The electric potential is two times larger at B than at A .
(D) The electric potential is four times larger at A than at B .
(E) The electric potential is four times larger at B than at A .
4 . Which of the following statements about the electric field between the plates is correct?
(A) The electric field is the same at points A and B .
(B) The electric field is two times larger at A than at B .
(C) The electric field is two times larger at B than at A .
(D) The electric field is four times larger at A than at B .
(E) The electric field is four times larger at B than at A .
5 . A very long cylindrical conductor is surrounded by a very long cylindrical conducting shell, as shown
above. A length L of the inner conductor carries positive charge Q . The same length L of the outer
shell carries total charge −3Q . How much charge is distributed on a length L of the outside surface of
the outer shell?
(A) none
(B) −Q
(C) −2Q
(D) −3Q
(E) −4Q
Free Response:
6 . Two conducting metal spheres of different radii, as shown above, each have charge −Q .
(a) Consider one of the spheres. Is the charge on that sphere likely to clump together or to spread out?
Explain briefly.
(b) Is charge more likely to stay inside the metal spheres or on the surface of the metal spheres?
