CUET · PHYSICS · PYQ PAPER 2023
An unchanged capacitor is connected to a battery. How much amount of energy supplied by the battery is lost as heat while charging the capacitor ?
- A QV/4
- B zero
- C QV/2
- D QV/3
Answer & Solution
Correct Answer
(C) QV/2
Step-by-step Solution
Detailed explanation
Energy supplied by battery: \( E_{battery} = QV \) Energy stored in capacitor: \( E_{capacitor} = \frac{1}{2} QV \) Energy lost as heat: \( E_{heat} = E_{battery} - E_{capacitor} = QV - \frac{1}{2} QV = \frac{1}{2} QV \)
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