![](https://www.sarthaks.com/?qa=blob&qa_blobid=1898980526481453244)
Series LCR circuit is said to be in resonance when current through the circuit is maximum In an series LCR circuit current amplitude is given by
![](https://www.sarthaks.com/?qa=blob&qa_blobid=10683487129087280198)
where XC = 1/ωC and XL = ωL
If frequency is varied, at particular angular frequency ωo the condition XC = XL is achieved, this condition is called resonance,
![](https://www.sarthaks.com/?qa=blob&qa_blobid=12965232165410143917)