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Bandwidth is the amount of information that can come through. The frequency is how quickly the information can come through.
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What are the challenges of computer mediated communication?
Quality of signal. Size of the data vs bandwidth. Speed of transfer.
What is the advantage of relative frequency distribution vs distribution frequency?
These help to distribute the frequency much better than the latter. The noise might not be as loud or boisterous this way.
What are the merits of Firewire 800 vs 400?
Firewire 800 has twice the bandwidth of the Firewire 400.The number is the throughput in Megabits.
Is the plot of current versus frequency symmetrical about the resonant frequency in LRC circuit?
The plot of current vs. frequency is not symmetric because the equations for inductive reactance and capacitive reactance are not symmetric. One is linear and the other is inverse.
What frequency would she hear as the siren moves away from her at the speed of Vs equals 49ms?
f = C fo / (C + vs)(Assuming speed of sound, c = 330 m/s),f = 330 fo / (330 +49 ) frequency that she would hear isf = 0.87 f0
Would there be a Doppler effect if the source of a wave is stationary and the observer is the one in motion?
Yes. The observer frequency fo= f( v + vo)/(v -vs) where f is the signal frequency, v is the speed of wave and vo is the speed of the observer towards the signal and vs is the speed of the signal toward the observer.
Will the impedance in a series RL circuit increase as the frequency decreases?
When the frequency of Parallel RL Circuit Increases,XL increases which causes IL (current through inductor) decreases. Decrease in IL causes It (It=Il+Ir) to decrease,which means by relation IT=Vs/Zt ,the Zt (Total Impedance) Increases.
Comparison between fdm tdm?
FDM-Frequency division multiplexing where as TDM mean Time division multiplexing.In FDM spectrum is divided into frequency whereas in TDM divided into time slot.FDM is used in 1st generation analog system whereas TDM is used in 2nd generation analog system.
In classical physics how does an atomic oscillator behave when heated in terms of energy emissions?
The oscillator starts at relatively low frequency and emits electromagnetic radiation of relatively low frequency (or long wavelength) and low intensity. As the heating continues, the frequency of oscillation also increases as does the frequency of the emitted radiation and the intensity of the radiation. A graph of intensity vs. wavelength would start high on the left (at short wavelengths) and fall off to the right exponentially to low intensity at long wavelengths. This graph would be at odds with the experimentally established graph of intensity vs. wavelength(which shows low intensity at short wavelengths) because the classical assumption that frequency of oscillation can increase continuously as the oscillators are heated is not correct. Frequency of oscillation can increase only in integral multiples of the fundamenal frequency.
Why is frequency modulation used for radios?
This is because there is much less interference with FM vs. other cost-effective modulation methods, like AM for example.
Does black and white video save bandwidth?
It depends how much traffic you have on your network, color vs. black and white does not make any difference. It is all based off traffic, video resolution, and what all programs are running on the network
If the frequency vs wavelength of neutral hydrogen radio emission is 21cm vs 1428MHz where can I find such emissions for other elements all I seem to find is measured in nanometers for some reason?
1 nanometer is the same as 0.0000001 centimeter. The emissions for the other elements that you're finding are in the range of visible light, compared to the 1428 MHz line of hydrogen that's in the low microwave. Their wavelengths are much much much shorter, and their frequencies are much much much higher. To get the frequency of any wavelength, divide 300,000,000 by the wavelength in meters, or divide 30,000,000,000 by the wavelength in centimeters, or divide 300,000,000,000 by the wavelength in millimeters, or divide 300,000,000,000,000,000 by the wavelength in nanometers. The answer is the frequency in Hz. Divide it by 1,000 to get KHz, or divide it by 1,000,000 to get MHz, or divide it by 1,000,000,000 to get GHz. For the wavelength of any frequency, divide 300,000,000 by the frequency in Hz, or divide 300,000 by the frequency in KHz, or divide 300 by the frequency in MHz, or divide 0.3 by the frequency in GHz. The answer is in meters. Multiply it by 100 to get centimeters, or multiply it by 1,000 to get millimeters, or multiply it by 1,000,000,000 to get nanometers.
