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Equipotential surfaces of a point charge are
Aparallel planes
Bcoaxial cylinders
Cconcentric spheres
Dhyperboloids
Answer & Solution
Correct answer: C. concentric spheres
1. For a point charge V = q/(4πε₀r) depends only on radial distance r.
2. Surfaces of constant V are surfaces of constant r.
3. These are concentric spheres centred on the charge.
_Source: Maharashtra Balbharati Std XII Physics, Ch 8 "Electrostatics" §8.5_
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