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What is the lowest frequency of the electromagnetic spectrum?
0 Hz, DC
What is signal encodes information as a string of 1's and 0s?
A digital signal. Specifically, a binary signal.
The lowest frequency possible in a vibrating string undergoing resonance?
therotically, take x as frequency x ->0
Which electromagnetic waves have the longest wavelength lower frequency and lowest energy?
Radio waves have the lowest frequency and longest wavelength there arent any sub-catagories it just goes (lowest to highest in frequency) Radio wave, microwave, infrared, Visible light, ultra violet light, x-ray, then gamma ray with the shortest wavelength and highest frequecy
What is an audio spectrum analyzer?
Audio frequency spectrum is measured in Hertz's (Hz) and tells the range of audible audio. The human hearing range is usually 20-20000Hz, but especially the audibility of the top end of the spectrum declines with age. Most software analyzers measure between 0 Hz and 16000-24000kHz
Bandwidth of digital signal is infinite?
A digital signal is actually a complex signal. Consider the horizontal part of a digital signal as a component with 0 frequency and the vertical part of the signal as the component of infinite frequency. Also, consider the change from the horizontal to vertical as all the frequencies. Then we can claim that a digital signal is complex signal with frequencies from 0 to infinite.A digital signal is a composite analog signal with an infinite bandwidth.
If the duty cycle of a rectangular waveform is 20 percent and the signal is a logic 0 for 40µsec what is the signal frequency?
If the logic 0 is the 20% then the period is 2ms and the frequency is 500 Hz. If the logic 0 is the 80% then the period is 50us and the frequency is 20kHz
If a signal has a frequency of 100 HZ and a phase of 180 degrees how much time has the wave been offset from 0?
The period - the time for one full cycle - is the reciprocal of the frequency. If the frequency is in Hz, the time will be in seconds.From 0 to 180 degrees is one-half of a full cycle.
Why do highpass filters block the DC signal?
Because DC is the lowest frequency (0 Hz) so that it does not pass the filter.
What is baseband filter?
A baseband filter is a device that only passes frequencies inside the interval (0,B), where B is the maximum frequency of the signal.Example: The human voice occupies a spectrum from 0 Hz to 3400 Hz, aproximately. A baseband filter would only let those frequencies pass.The difference between a band-pass and a baseband filter is that the latter is a band-pass filter with its lower cut frequency being 0.
Signal has 0-1 values. is this will be analog or digital signal?
If the values are only 0 and 1 then the signal is digital.
What is the lowest frequency of the electromagnetic spectrum?
0 Hz, DC
The frequency of this signal is?
If you are given a graph of the signal. Calculate the period, T, which length of time for one cycle. The frequency is f = 1/T (Hz) For example. T = 20 ms, f = 1/(20 ms) = 50 Hz. If you are given an equation, in the form of: v(t) = Vm cos (ωt + ϴ) The frequency is ω (rad/s) For example v(t) = 120 V cos ((314 rad / s) t + 0) The frequency is 314 rad/s = 50 Hz.
What band of freqency does the Photon work?
Photons can have any frequency: 0 Hz (0 eV) to infinite Hz (infinite eV).
What is the baud rate of a digital signal?
the digital signals frequency is infinite ,i.e ranges from 0.....infinity
How do you test for a digital signal?
using LED.when the signal is 1,then the LED glows,but when signal is 0,then it does not glow.
Send me the conversion for Kilo HZ to DB?
Send me the reference value (0 dB) for frequency.
