This module introduces the fundamentals of alternating voltages and currents. In addition to sine waves, the module also covers non-sinusoidal waveforms and harmonic frequencies. The phase relationships between alternating current and voltage are also described. The principles of transformers and transformer polarity are presented as well as the effects of inductive and capacitive reactance on AC circuits.

Learning Outcomes:

Upon completion of this module the student will be able to:

- Identify sine waves
- Explain the instantaneous value of a sine wave
- Define impedance
- Determine the average and RMS values of a sine wave
- Describe the phase relationships between alternating current and voltage
- Explain the basic operating principle of transformers
- List the standard markings used to identify transformer polarity
- Differentiate between a sinusoidal and non-sinusoidal wave
- Name three types of non-sinusoidal waves
- Define harmonics
- Explain the effects of inductive and capacitive reactance on AC circuits
- Discuss power in AC circuits

Display Order

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