KCET 2025 Physics Paper

The false statement is Option A.
Reasoning:
By definition, on an equipotential surface the potential V is the same everywhere, so any two points have
∆V=0
The work done in moving a charge q through a potential difference ∆V is
W=q∆V=q×0=0
Hence it's incorrect to say the work is "not zero."
The other options are all true:
B: Equipotentials are surfaces of constant V.
C: In a uniform field, equipotentials are equally spaced parallel planes.
D: E is always perpendicular to equipotential surfaces.