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An inductor of 4 H stores 0.5 J of energy. What current flows through it?
A0.25 A
B1 A
C0.5 A
D2 A
Answer & Solution
Correct answer: C. 0.5 A
From 0.5 L i^2 = 0.5 we get i^2 = 0.25, so i = 0.5 A.
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