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a rc series circuit of r=10ohm and c=10 microfarad is connected to 20 volt DC supply for very long time. Then capacitor is disconnected from circuit and connected to inductor of 10 Milli henry. Find amplitude of current?

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  C=10μF     Vo?=20 volts     L=10mH 

\begin{aligned} &\text { Amplitude of the current } \mathrm{I}_{0}=\mathrm{Q}_{0} \mathrm{w}=\left(\mathrm{CV}_{0}\right) \frac{1}{\sqrt{\mathrm{LC}}}=\sqrt{\frac{\mathrm{C}}{\mathrm{L}}} \mathrm{V}_{\mathrm{o}}\\ &\Longrightarrow \mathrm{I}_{0}=\sqrt{\frac{10 \times 10^{-60}}{10 \times 10^{-3}}} \times 20=0.2 \sqrt{10} \mathrm{A} \end{aligned}

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Satyajeet Kumar

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