LCR circuit derivation
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LCR circuit is well-known as a tuned or resonant circuit. It refers to an electrical circuit that comprises an inductor (L), a capacitor (C), and a resistor (R). ... To derive the LCR circuit equations, some of the terms like impedance are used. Impedance refers to the resistance related to the LCR series circuit.
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Derive an expression for the impedance of a series LCR circuit connected to an AC supply of variable frequency. Plot a graph showing variation of current with the frequency of the applied voltage. ... Clearly VC and VL are in opposite directions, therefore their resultant potential difference =VC -VL (if VC >VC).
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