Home/
Competitive Exams/
JEE Main & Advanced/
Physics/
Capacitance/
Question 31539
JEE Physics · Medium

Capacitance: Discharge Energy MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

Timer-based practiceDetailed answer reviewMobile-friendly flow
Discharge EnergyMediumQuestion 31539

Question

A 10 μF capacitor charged to 50 V is discharged through a resistor. Total heat dissipated is:
  1. A
    25 mJ
  2. B
    12.5 mJ
    Correct
  3. C
    50 mJ
  4. D
    5 mJ

Correct answer

12.5 mJ

Explanation

All stored energy converts to heat: U = ½CV² = ½×10×10⁻⁶×2500 = 12.5 mJ.

Review Capacitance notesStart timed chapter practice