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In phase modulation the amount of phase shift in the carrier signal depends on the of the modulating signal and the rate of phase shift depends on the of the modulating signal?
Amplitude Frequency
Why phase shift oscillator uses three RC pairs?
The frequency stability of oscillators depend on the rate of change of phase with frequency. RC sections help improve the frequency stability. The net phase shift introduced by the RC feedback network is 180 degrees ,which contains n sections.Thus each RC section introduces 180/n degree phase shift. When 2 RC sections are cascaded due to low phase change rate the frequency stability is low. For 3 sections cascaded the phase change rate is high and hence there is improved frequency stability. However for 4 RC sections there is an excellent phase change rate resulting in the most stable oscillator configuration. But 4 RC sections increases cost and makes circuit bulky. Hence phase shift oscillators make use of 3 RC sections in which each section provides a phase shift of 60 degree. The latter is generally used in high precision applications where cost is not much regarded and only accuracy plays a major role.
What is an angular frequency?
Angular frequency is a measure of how quickly an object rotates or oscillates in radians per unit of time. It is calculated as the product of 2π and the frequency of the oscillation. In simple terms, it describes the rate of change of the phase of a sinusoidal waveform.
What motor gets more heated single phase or three phase?
Your question is a little like asking, 'How long is a piece of string?'! Do the two motors have the same power rating, or are they different?The rate at which energy is used by any machine is defined by its power rating. If the power ratings of two different machines are the same, then both machines use energy at the same rate. So if a single-phase motor has the same power rating as a three-phase motor, then they will both use exactly the same amount of energy over a given period of time.So, if a single-phase motor has a greater power rating than a three-phase motor, then the single-phase motor will the greater amount of energy in a given period. On the other hand, if a three-phase motor has a greater power rating than a single-phase motor, then the three-phase motor will the greater amount of energy in a given period.
What is the operational definition for wave speed?
An operational definition is a way of defining a physical quantity or quality in terms of an operation performed. An operational definition of wave speed is "The speed at which sound-waves in air transfer vibratory energy characterized by rate (frequency), starting position (phase), and magnitude (amplitude) of vibration."
How does bandwidth of a current series feedback amplifier change with frequency?
Bandwidth does not change with frequency. Bandwidth defines (part of) how the response of a circuit changes with frequency. Other things that define how the response of a circuit changes with frequency are: phase shift, roll-off rate, linearity of the passband, etc. but bandwidth ignores these.
What is the significance of the cyclotron frequency in the operation of a cyclotron particle accelerator?
The cyclotron frequency is important in a cyclotron particle accelerator because it determines the rate at which charged particles spiral and gain energy in the magnetic field. This frequency must match the frequency of the accelerating electric field to ensure efficient particle acceleration.
The rate of vibration of sound waves is called?
The rate of vibration is called the frequency.
What is mean by stability of the oscillator?
Stability of the oscillator means the how much frequency stability it have. Measure of frequency stability comes from "rate of change of phase w.r.t frequency", the more it is the more stable the oscillator is, because we know that one condition for oscillation is that the loop gain phase shift should be zero, hence if due to ckt. parameters there is some change in phase then by very little variations in frequency we can bring back the loop gain phase shift to zero. ex. is LC tank circuit which act as an osciilator at resonant frequency. Frequency stability can also be measure from quality factor, the higher it is the more stable ckt. is,Parikshit ParasherB-tech ECE, PG power engg.parikshit_parasher@yahoo.co.in
HOW and Why there is 440v supply in three phase and 230v supply in single phase?
In a three-phase system, the voltage is measured between any two of the three phase conductors. The voltage between two phases in a 3-phase system is higher at 440v compared to a single-phase system where the voltage is measured between one phase and a neutral wire, resulting in 230v. The higher voltage in three-phase systems allows for more power to be transmitted efficiently over long distances.
What does frequency of activity mean?
Frequency of activity refers to how often a particular action or event occurs within a specific time period. It is a measure of the rate or pace at which the activity is repeated. For example, if you exercise three times a week, the frequency of your activity would be three times per week.
Is a higher or lower accident frequency rate better?
A lower accident frequency rate is better as "frequency" means "how often something occurs".
