Four objects are moved in various ways in the electrostatic field of Figure P25.19. Rank the following motions in order of the amount of electrostatic work done on the object, smallest amount first:

(a) an object carrying charge \(+q\) is moved from A to \(\mathrm{B},(b)\) an object carrying charge \(+q\) is moved from A to C, \((c)\) an object carrying charge \(+q\) is moved from B to C, \((d)\) an object carrying charge \(-q\) is moved from A to B.

Data from Figure P25.19

B. C A