Analyzing AC Circuits using Nodal Analysis

General Approach to Analyzing AC Ciruits:

When analyzing an AC circuit there are generally three steps we take:

1. Transform the circuit to the phasor/frequency domain.
2. Solve the problem using circuit techniques (nodal/mesh analysis, superposition etc...)
3. Transform the resulting phasor to the time domain if desired.

One of the circuit techniques that can be used (in step number two) is nodal analysis. Nodal analysis is based off of Kirchhoff's Current Law (KCL). KCL is valid for the phasor domain which means it can be used to analyze AC circuits using nodal techniques (in a similar manner used with DC circuits).

Next we will take a look at an example:

Continue on to AC nodal analysis example problem.