# an LCR series circuit with L = 100 mH , c= 100 uF , R = 120 ohm is connected an ac source of emf E = 30 sin 100 t volt . find the impedance , peak currrent and resonant frequency of the circuit .

Here is a link given below which will help you to solve this question with proper explanation .

https://www.meritnation.com/ask-answer/question/an-lcr-series-circuit-has-r-100-ohms-l-0-5-h-c-100am-2f/current-electricity/8934959

To find the resonant frequency use the equation :

$f=\sqrt{{R}^{2}+{\left(\omega L-\frac{1}{\omega C}\right)}^{2}}$

Hope this helps you .

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