Question Detail
Question
Energy stored in a capacitor can be expressed as:
Correct Answer
Option B is the correct answer.
Detailed Explanation
All three of ½QV, ½CV², and Q²/2C are equivalent expressions (using Q=CV to convert between them), with ½CV² being the most commonly quoted form.
Hint
Recall that energy stored in a capacitor has several equivalent forms, all derived from Q = CV.