Answer: ½CV².
- A ½CV²
- B simply CV
- C half of CV
- D fully CV²
Correct answer: A. ½CV²
Explanation: The energy stored is U = ½CV².
Field lines (radial) and equipotential lines (concentric circles) of a point charge. Equipotential surfaces are always perpendicular to the field lines. Image: Sjlegg, Public Domain, via Wikimedia Commons.
Concept context
Electric potential, equipotential surfaces, potential energy of charge systems, conductors, dielectrics, capacitors, combinations, and energy storage.
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