Admittance Curve Assignment Help

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Admittance Curve:

Admittance Y is reciprocal of impedance. Its variation with frequency is illustrated in Figure

                  Y = 1 /Z


1489_Admittance Curve.png

Figure: Admittance Curve

Figure illustrates the variation of current with frequency. Current is maximum at resonance frequency ω. At rms value of current   I0 /√2 , power becomes half of its maximum value. Thus the points, corresponding to I/√2 on the resonance curve, are known as the half power points. Frequency ω1 and ω2 corresponding to these two points are known as the lower and upper half power frequency.

1173_Admittance Curve1.png

Figure: Resonance Curve

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