Electrical Systems

Impedance


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The circuit reactance is inductive again inductive(This is dummy text)

Resistance, R =     Ω Reactance, X =     Ω Impedance =   Z =   R + X j =     Ω V =   Voltage I =   V Z  =  Amp The current lags voltage by 54.726°

Impedance is the measure of the opposition to the flow of alternating current in a circuit.

Impedance (symbol Z) is made up of two components, resistance and reactance, and represented as a complex number


Z = R + X j

R is the resistance and X is the reactance

Reactance X may be due to inductance or due to capacitance or both inductance and capacitance


Graphically R and X are base and height of the Right Angled Triangle, whereas Z is the Hypotenuse (see the above generated figure)


Like resistance and reactance the impedance is also measured in Ohm

Impedance can also be written in polar form as:


Z = |Z|∠φ

|Z| is the magnitude of Z and φ is the impedance angle