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Impendence of a circuit may also be calc...

Impendence of a circuit may also be calculated using impendence triangle. Explain.

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From the figure ` tan phi = ( (omega L - (1)/(omega C) )/(R )) = ( (X_L - X_C)/( R ) ) and Z = sqrt(R^2 + (X_L - X_C)^2)`
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