A uniform electric field exists between two charged plates as shown in

1.	A uniform electric field exists between two charged plates as shown in the fig. What should be the work done in moving a charge q along the closed rectangular path ABCDA?
Answer» Work done in an electric field is independent of the path and depends only on the initial and final positions. Here initial and final points are coincident. Work =q × (V_final – V_initial) = q (VA – VA) So, net work done is zero.

A uniform electric field exists between two charged plates as shown in the fig. What should be the work done in moving a charge q along the closed rectangular path ABCDA?

Answer»

Work done in an electric field is independent of the path and depends only on the initial and final positions.

Here initial and final points are coincident.

Work =q × (V_final – V_initial)

= q (VA – VA)

So, net work done is zero.