RE-NEET2024Physics-Electrostatics
RE-NEET 2024 Physics Energy Stored in Capacitors MCQ Question
Type: MCQ-numerical-Easy-Class 12
A 12 pF capacitor is connected to a 50 V battery, the electrostatic energy stored in the capacitor in nJ is
A
15
B
7.5
C
0.3
D
150
Correct Answer
Option A
Detailed Explanation
The energy stored in a capacitor is given by U = 0.5 * C * V². Substituting C = 12 pF and V = 50 V, U = 0.5 * 12 * 10⁻¹² F * (50)² V² = 15 nJ.
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