This course is an introductory study of DC and AC electrical circuits. Content includes electrical charge, current, voltage, resistance, energy, power, capacitance, inductance, and the transient behavior of RC and RL circuits. For AC, the concepts of frequency, period, phase, and magnitude of sine waves fare developed. Electrical circuit parameters are studied as phasors and complex numbers and are expressed in polar and rectangular form. Major AC topics include reactance, impedance, power, and resonance. Electric circuit theory includes Ohm’s law; Kirchhoff’s laws; series and parallel circuits; and electrical sources. It also introduces voltage and current dividers and Thevenin’s theorem. Lab exercises develop the use of basic measurement equipment, such as the ammeter, voltmeter, and oscilloscope while verifying concepts studied in lectures.