In alternating current the average value of current in the cycle is;
Correct answer: A. Zero
- A. Zero
- B. Constant
- C. Positive
- D. Maximum
Explanation
The average current value in a complete cycle of AC waveform, such as a sine wave, is zero because the positive and negative parts of the waveform cancel each other out.
This question appeared on the ETEA MDCAT 2010 paper, which you can sit online with every answer explained.
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About Phase of Alternating Current
Phase describes the position of an alternating voltage or current within its cycle and the phase difference between two sinusoidal quantities. The topic covers in phase signals, phase angle and lead or lag in resistive, inductive and capacitive circuits, rather than the amplitude or frequency of the supply.
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