A 42 mH inductor is connected to $200 \mathrm{~V}, 50 \mathrm{~Hz}$ a.c. supply. The r.m.s. value of current in the circuit will be nearly [ Take $\pi=\frac{22}{7}$ ]

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Aicharya · Accepted Answer

$\begin{aligned} \mathrm{X}_{\mathrm{L}} & =\omega \mathrm{L} \ & =2 \pi \mathrm{~F} . \mathrm{L} \ & =2 	imes \pi 	imes 50 	imes 42 	imes 10^{-3} \ & =13.194 \Omega \ \mathrm{I}_{\mathrm{RMS}} & =\frac{\mathrm{V}}{\mathrm{X}_{\mathrm{L}}}=\frac{200}{13.194}=15.15 \mathrm{~A}\end{aligned}$

A 42 mH inductor is connected to $200 \mathrm{~V}, 50 \mathrm{~Hz}$ a.c. supply. The r.m.s. value of current…

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