What is meant by resonance in a series LCR circuit? Write the expression for the current through LCR series circuit at resonance. Mention any one application of resonant circuits.

What is meant by resonance in a series LCR circuit? Write the expressi

1.	What is meant by resonance in a series LCR circuit? Write the expression for the current through LCR series circuit at resonance. Mention any one application of resonant circuits.
Answer» Solution :In a series LCR circuit for a particular frequency of the APPLIED a.C.the current in the circuit BECOMES maximum. This is known as electrical RESONANCE. At resonance, inductive reactance `(X_(L))` = capacitive reactanmce `(X_(C))` `rArr omega_(0)L = (1)/(omega_(0)C)` Thus resonant angular frequency `omega_(0) = (1)/(sqrt(LC))`

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What is meant by resonance in a series LCR circuit? Write the expression for the current through LCR series circuit at resonance. Mention any one application of resonant circuits.

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