What is the stored energy in a 0.50-mH coil carrying a current of 5.0 A?

Name: What is the stored energy in a 0.50-mH coil carrying a current of 5.0 A?
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Quizplus · Accepted Answer

The stored energy in an inductor (coil) is given by the formula $E = \frac{1}{2}LI^2$, where $E$ is the energy in joules, $L$ is the inductance in henries, and $I$ is the current in amperes. Substituting the given values, $E = \frac{1}{2} \times 0.50 \times 5.0^2 = 6.25 \times 10^{-3}$ J, which is closest to option B, 6.3E-3 J.

What Is the Stored Energy in a 0