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Question:

A 0.56-m H inductor stores 3.5×10-5 J when carrying a DC current. What is the magnitude of that current?

A 0.56-m H inductor stores 3.5×10-5 J when carrying a DC current. What is the magnitude of that current?

Answer:

3.5×10-5 J (1/2) 0.56 x10^-3 i^2 i 0.356 A

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