In the case of an unsymmetrical alternating current the average value must always be taken over__________?
Correct answer: D. the whole cycle
- A. unsymmetrical part of the wave form
- B. the quarter cycle
- C. the half cycle
- D. the whole cycle
Explanation
For an unsymmetrical AC waveform, positive and negative portions are not equal, so averaging over a half-cycle can give a misleading result. The complete cycle must be used to include the entire waveform.
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