Home › UP Board Class 12 › Physics › Electrostatic Potential and Capacitance › A 5 µF capacitor is charged to 200 V. The energy…
A 5 µF capacitor is charged to 200 V. The energy stored in it is
A{'text': '0.1 J', 'label': 'A'}
B{'text': '0.05 J', 'label': 'B'}
C{'text': '1.0 J', 'label': 'C'}
D{'text': '0.5 J', 'label': 'D'}
Answer & Solution
Correct answer: A. {'text': '0.1 J', 'label': 'A'}
1. U = ½ C V².
2. U = 0.5 × 5 × 10⁻⁶ × (200)² = 0.5 × 5 × 10⁻⁶ × 4 × 10⁴.
3. U = 10⁻¹ = 0.1 J.
_Source: NCERT Class 12 Physics Part I, Ch 2 §2.15_
Related questions
Capacitors in parallel all have:Capacitors in series all carry:A parallel plate capacitor is two large flat plates separated by a:The largest field a dielectric can withstand without breaking down is its:A capacitor with a large capacitance can hold a large charge at a:The ratio Q/V for a capacitor is a constant called its:A capacitor's plates carry Q and minus Q. The total charge of the capacitor is:Two conductors separated by an insulator form a: