Impedance Z The ac version of Ohm’s Law is where the complex quantity is called the The impedance. Z impedance can be expressed in terms of its real part and its R imaginary part as X where the is the resistance and is the reactance. R X VOLTAGES, CURRENTS PHASORS FOR RESISTORS, CAPACITORS AND INDUCTORS With circuits containing resistors, capacitors and inductors, the voltage across different elements maybe out of phase with each other. Also, for an element, the voltage across it and the current
Impedance Z The ac version of Ohm’s Law is where the complex quantity Z is called the impedance. The impedance can be expressed in terms of its real part R and its imaginary part X as where the R is the resistance and X is the reactance. VOLTAGES, CURRENTS PHASORS FOR RESISTORS, CAPACITORS AND INDUCTORS With circuits containing resistors, capacitors and inductors, the voltage across different elements maybe out of phase with each other. Also, for an element, the voltage across it and the current
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