AC Fundamentals, Circuit and Circuit Theory
The frequency of an alternating current is

The number of waves passing through a point in one second
The speed with which the alternator runs
The number of electrons passing through a point in one second
The number of cycles generated in one minute

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AC Fundamentals, Circuit and Circuit Theory
Poor power factor

Results in more power losses in the electrical system
All of the listed here
Overloads alternators, transformers and distribution lines
Reduces load handling capability of electrical system

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