Answer: Increases by K.
- A Decreases by K
- B Stays same
- C Increases by K
- D Decreases by K<sup>2</sup>
Correct answer: C. Increases by K
Explanation: Constant V: C increases to KC. U = (1/2)CV<sup>2</sup> = (1/2)(KC)V<sup>2</sup> = K x original energy. Energy increases.
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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