This paper details the capabilities of common circuits as measured by a variety of experiments, including analysis of impedance in relation to inductance and capacitance. RC circuits were constructed to observe a V-i phase shift resulting in a Lissajous figure, and CLR circuits were constructed to observe a resonance frequency. Furthermore, an electromagnetic field was constructed to test a Matlab Biot-Savard Law simulation. This report was submitted as part of Lab 4 in the AP Physics course taught by Henri van Bemmel.