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Physics · PYQ NEET UG 2023
हिन्दीThe magnetic energy stored in an inductor of inductance \( 4 \, \mu\text{H} \) carrying a current of \( 2 \, \text{A} \) is :
Correct answer · Option 1
\( 8 \, \mu\text{J} \)
Explanation
Magnetic energy \( U = \frac{1}{2} L I^2 = \frac{1}{2} \times (4 \times 10^{-6}) \times (2)^2 = 8 \times 10^{-6} \, \text{J} = 8 \, \mu\text{J} \).
