A.   The electric field does positive work on the charge. The potential energy associated with the charge decreases.

B.   The electric field does negative work on the charge. The potential energy associated with the charge increases.

C.   The sign of the work done on the charge cannot be determined without additional information. The electric field does not do any work on the charge.

D.   The electric field does negative work on the charge. The sign of the work done on the charge cannot be determined without additional information.

A.   The electric field does positive work on the charge. The sign of the work done on the charge cannot be determined without additional information.

B.   The potential energy associated with the charge decreases. The electric field does positive work on the charge.

C.   The potential energy associated with the charge increases. The electric field does negative work on the charge.

D.   The electric field does not do any work on the charge. The sign of the work done on the charge cannot be determined without additional information.

A.   Work is both performed and required in moving the charge from point A to point B.

B.   No work is performed or required in moving the positive charge from point A to point B.

C.   Work is performed in moving the positive charge from point A to point B.

D.   Work is required in moving the positive charge from point A to point B.

A.   The electric potential energy of the charge increases, and the kinetic energy decreases.

B.   The electric potential energy of the charge decreases, and the kinetic energy increases.

C.   Both the electric potential energy and the kinetic energy of the charge increase.

D.   Both the electric potential energy and the kinetic energy of the charge decrease.

A.   At twice the distance, the electric potential remains V.

B.   At twice the distance, the electric potential is V/4.

C.   At twice the distance, the electric potential is V/2.

D.   At twice the distance, the electric potential is 4V.

E.   At twice the distance, the electric potential is 2V.

A.   If you triple the value of the charge, the electric potential is V/9.

B.   If you triple the value of the charge, the electric potential is 9V.

C.   If you triple the value of the charge, the electric potential is 3V.

D.   If you triple the value of the charge, the electric potential is V/3.

E.   If you triple the value of the charge, the electric potential remains V.

A.   The electric potential energy of the charge increases, and the kinetic energy decreases.

B.   Both the electric potential energy and the kinetic energy of the charge decrease.

C.   The electric potential energy of the charge decreases, and the kinetic energy increases.

D.   Both the electric potential energy and the kinetic energy of the charge increase.

A.   The potential energy of a test charge increases as it moves along an equipotential surface. Electric field lines and equipotential surfaces are always mutually perpendicular.

B.   Electric field lines and equipotential surfaces are always mutually perpendicular. When all charges are at rest, the surface of a conductor is always an equipotential surface. An equipotential surface is a three-dimensional surface on which the electric potential is the same at every point.

C.   The potential energy of a test charge increases as it moves along an equipotential surface. When all charges are at rest, the surface of a conductor is always an equipotential surface.

D.   When all charges are at rest, the surface of a conductor is always an equipotential surface. The potential energy of a test charge decreases as it moves along an equipotential surface.