Question 381: AC fundamentals

Question

A $$100 \mathrm{~mH}$$ coil carries a current of $$1 \mathrm{~A}$$. Energy stored in the form of magnetic field is

Accepted Answer

Energy stored in an inductor $$\mathrm{E}=\frac{1}{2} \mathrm{LI}^2$$
$$\begin{aligned}
& =\frac{1}{2} 	imes\left(100 	imes 10^{-3}ight) 	imes 1 \
& =0.05 \mathrm{~J}
\end{aligned}$$

Answer

0.025 J

Answer

0.050 J

Answer

0.075 J

Answer

0.100 J

AC fundamentals

A $100 \mathrm{~mH} coil carries a current of 1 \mathrm{~A}$. Energy stored in the form of magnetic field is

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