The sketch below shows cross sections of equipotential surfaces between two charged conductors that are shown in solid grey. Various points on the equipotential surfaces near the conductors are labeled A, B, C, ..., I.
-How much work is required to move a -1.0 $\mu$C charge from B to D to C?

Question

The sketch below shows cross sections of equipotential surfaces between two charged conductors that are shown in solid grey. Various points on the equipotential surfaces near the conductors are labeled A, B, C, ..., I. 
-How much work is required to move a -1.0 $\mu$C charge from B to D to C?

Quizplus · Accepted Answer

The work done in moving a charge in an electric field is path-independent and depends only on the initial and final positions. If B, D, and C are at the same potential or if the path forms a closed loop, the work done is zero.

The Sketch Below Shows Cross Sections of Equipotential Surfaces Between μ\muμ

The Sketch Below Shows Cross Sections of Equipotential Surfaces Between $\mu$