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Question
The magnetic energy stored in an inductor of inductance 4 µH carrying a current of 2 A is ______.
Options
4 mJ
8 mJ
8 μJ
4 μJ
MCQ
Fill in the Blanks
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Solution
The magnetic energy stored in an inductor of inductance 4 µH carrying a current of 2 A is 8 μJ.
Explanation:
Magnetic energy stored in an inductor is \[\frac {1}{2}\]LI2 = \[\frac {1}{2}\] × (4μH) × 22 = 8 μJ.
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