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Electrical sinusoidal waveforms, vectors & phases, reactance & impedance of R,L,C circuits.
Updated on Sep, 2026
Business, Industry, Electrical Engineering
Training 5 or more people ?
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Alternating current (AC) is an electric current that periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy that consumers typically use when they plug kitchen appliances, televisions, fans, and electric lamps into a wall socket. A common source of DC power is a battery cell in a flashlight. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.
The usual waveform of alternating current in most electric power circuits is a sine wave, whose positive half-period corresponds with the positive direction of the current and vice versa. In certain applications, like guitar amplifiers, different waveforms are used, such as triangular waves or square waves. Audio and radio signals carried on electrical wires are also examples of alternating currents. These types of alternating currents carry information such as sound (audio) or images (video) sometimes carried by modulation of an AC carrier signal. These currents typically alternate at higher frequencies than those used in power transmission.
This course deals specifically with sinusoidal waveforms and will provide the student with a basic understanding of working with circuits involving Alternating Current, which includes sinusoidal waveforms, vectors & phases, reactance & impedance of R, L, C circuits, as they relate to the basic laws and theorems of electricity. This includes working with AC Power, Power Factor, Resonance, Complex Numbers, Reactance, and Impedance
This course will provide an understanding of alternating sinusoidal currents.
including sinusoidal waveforms,
including reactance & impedance.
The student should have an understanding of the basic fundamentals of electricity and DC circuit analysis.
Check out the detailed breakdown of what’s inside the course
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