The alternating voltage is an example of_______________?
Correct answer: B. An analogue waveform
- A. A digital waveform
- B. An analogue waveform
- C. Discrete waveform
- D. None at all
Explanation
An alternating voltage changes continuously with time and can take a range of values, so it is an analogue waveform. A digital waveform has discrete permitted levels, which is why option a does not describe an ordinary sinusoidal alternating voltage.
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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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