On an equipotential surface, the work done in moving a test charge bet…

Question

On an equipotential surface, the work done in moving a test charge between any two points is

Accepted Answer

B. {'text': 'zero', 'label': 'B'}

1. By definition, V is the same at every point on an equipotential surface.
2. Work = q × ΔV; since ΔV = 0, work = 0 regardless of path.
3. So E is perpendicular to the surface everywhere on it.
_Source: NCERT Class 12 Physics Part I, Ch 2 §2.6_

Answer

{'text': 'maximum', 'label': 'A'}

Answer

{'text': 'dependent on the path length', 'label': 'C'}

Answer

{'text': 'equal to qE × d', 'label': 'D'}