Impedance in RC Circuits
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Impedance in RL Circuits
Impedance in RCL Circuits
Electrical Science Volume 3 of 4
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IMPEDANCE
Basic AC Reactive Components
Figure 6 Simple RL Circuit
Solution:
Z
R
^{2}
X
^{2}
_{L}
100
^{2}
60
^{2}
10,000
3600
13,600
Z
116.6
W
Impedance
in
R

C
Circuits
In a capacitive circuit, as in an inductive circuit, impedance is the resultant of phasor addition
of R and X
_{C}
. Equation (811) is the mathematical representation for
impedance
in an RC circuit.
(811)
Z
R
^{2}
X
^{2}
_{C}
Example:
A 50
W
X
_{C}
and a 60
W
resistance
are in series across a 110V source (Figure 7).
Calculate the impedance.
ES08
Page 12
Rev. 0
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