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Strengthening Skills   Building Confidence






figac1004.gif (1854 bytes)

This is a combination circuit driven by a single ac source. The  impedances can be resistive and/or reactive.

Step 1--Determine the total impedance of the circuit.  This is a parallel circuit:

ZT = Z1 + Z2 || Z3

Step 2--Use Ohm's Law to determine the total current:

IT = VT / ZT

Step 3--Find the current and voltage for Z1:

IZ1 = IT
VZ1 = ITZ1

Step 4--Determine the current and voltage for Z2

VZ2 = VT VZ1
IZ2  = VZ2 / Z2

Step 5--Apply the same procedure as Step 4 to find the current and voltage for Z3.

VZ3 = VZ2
IZ3 = VZ3 / Z3

Check the results:

VZ1  + VZ2  = VT


David L. Heiserman, Editor

Copyright   SweetHaven Publishing Services
All Rights Reserved

Revised: June 06, 2015