Discussion :: Alternating Current vs Direct Current - General Questions (Q.No.4)
If current varies periodically from zero to a maximum, back to zero, and then repeats, the signal is:
Answer: Option C
No answer description available for this question.
|Kuday said: (Aug 22, 2013)|
|Because if signal does not vary periodically from +ve to -ve. It is pulse.|
|Dcdon said: (May 7, 2014)|
|So how then do we describe direct current signal?|
|Roxy said: (Feb 27, 2021)|
|A pure direct current is a signal that has a constant value. It may be positive or negative but not both.
A pulsating direct current is a result from rectification of AC to DC since the alternations are not completely smoothen out and there is a need for further filtration and regulation to keep it on a constant level.
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