Is any work done when moving a charge along a field line?
A. Yes, the field does positive work when a positive charge moves in the direction of the field, and negative work when this positive charge is moved in a direction opposing the field.
B. No work is required to move a charge along a field line.
C. Yes, the field does negative work when a charge moves in either direction along a field line.
D. Yes, the field does positive work when a charge moves in either direction along a field line.
E. Yes, the field does negative work when a positive charge moves in the direction of the field, and positive work when this positive charge is moved in a direction opposing the field.
Explain. A. The force acting on the charged particle is perpendicular to the direction of motion. B. The force acting on the charged particle is parallel or antiparallel to the direction of motion. C. No force is acting on the charged particle.