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Impedance



  • The ratio of voltage to current in an AC circuit.


  • The combination of fixed DC resistance and frequency dependent AC reactance.


  • Impedance possesses both a magnitude, expressed in ohms, and a phase angle specified in degrees or radians.
    eg. Z = 16 ohms +27 degrees

  • Impedance (magnitude) and phase angle both vary with frequency

  • At 0 degrees phase angle the impedance is equal to the resistance of the circuit







LoudSpeakerImpedance :: ImpedanceMatching

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