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Yes DC is periodic with zero frequency........and undefined fundamental time period To........
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Is the frequency domain plot of an alarm system discreet or contineous?
discrete because the signal of an alarm is periodic.
Is the signal with zero frequency a periodic signal?
No, because for a signal to become periodic it must repeat itself in regular intervals of its time period.A 0 Hz signal has a time period equal to infinity , so technically the signal can never complete a full cycle by reaching infinity let alone repeat itself, since the signal is unable to repeat itself in regular intervals its not periodic.
What is DC chopper?
chopper use a ststeing perpose..... dc means direct current that is low voltage
What will happen to the output ac signal if the dc level is insufficient?
What will happen to the output ac signal if the dc level is insufficient? Sketch the effect on the waveform.
What is the difference of DC and pulsating DC?
DC: constant current in the forward directionPulsating DC: An AC signal which has it's negative components blockedA: The terminology applies to a VALUE of DC being interrupted by its absence periodically or random
What is periodic signal?
A periodic signal has two major characteristics: frequency and amplitude. Frequency is the number of times the periodic signal occurs in a set time, and the amplitude refers to how strong the signal is.
What is the difference between periodic and aperiodic signals?
A signal which repeats itself after a specific interval of time is called periodic signal. A signal which does not repeat itself after a specific interval of time is called aperiodic signal.A signals that repeats its pattern over a period is called periodic signal,A signal that does not repeats its pattern over a period is called aperiodic signal or non periodic.Both the Analog and Digital can be periodic or aperiodic. but in data communication periodic analog sigals and aperiodic digital signals are used.
Is step signal is a DC signal?
A: while a step can be of both polarity but it is a level change and it is DC LEVELS
4 what is the name of the circuit that adds a positive or negative dc voltage to an input sine wave?
This DC voltage is called the DC offset. Any decent signal generator will be able to add DC offset to the signal it generates. If you don't have one, simply connect a DC voltage to your signal.
Is clock pulse an ac or DC signal?
It is called ( pulsed DC ).
Is signal ac or dc?
ac
How does frequency affect amplitude?
we use dc supply for amplifcation and dc have no frequincy. we amplify just signal curent or signal voltage.
What are the characteristics of a periodical?
A periodic signal has two major characteristics: frequency and amplitude. Frequency is the number of times the periodic signal occurs in a set time, and the amplitude refers to how strong the signal is.
Why amplification of ac signal is easier than a dc signal?
The Amplification is much high during acmode because of transister conducts boththe Half cycles.But in DC the transister conducts only in positive half cycles.So the Amplification of AC signal greater than DC signal.
Is the frequency domain plot of an alarm system discreet or contineous?
discrete because the signal of an alarm is periodic.
Why mostly periodic analog and non-periodic digital signal used in communication?
yes and no
Is the signal with zero frequency a periodic signal?
No, because for a signal to become periodic it must repeat itself in regular intervals of its time period.A 0 Hz signal has a time period equal to infinity , so technically the signal can never complete a full cycle by reaching infinity let alone repeat itself, since the signal is unable to repeat itself in regular intervals its not periodic.
