NEET2023Physics-Electromagnetism
NEET 2023 Physics Inductance MCQ Question
Type: MCQ-numerical-Medium-Class 12
The magnetic energy stored in an inductor of inductance 4 μH carrying a current of 2 A is:
A
4 mJ
B
8 mJ
C
8 μJ
D
4 μJ
Correct Answer
Option C
Detailed Explanation
The energy stored in an inductor is given by the formula E = rac{1}{2} L I^2. Substituting and , we get E = rac{1}{2} imes 4 imes 10^{-6} imes 4 = 8 imes 10^{-6} \, J = 8 \, \mu J.
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