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How the movement particles linked with the changes of frequency and amplitude?
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What is the usage of frequency?
It is a device or electronic circuit that changes the frequency of an oscillator according to the amplitude of modulating signal. For instance, if the modulation is linear, the modulator changes the frequency proportional to the amplitude of the modulating voltage.
What is the formulae for finding amplitude of sound?
Amplitude= velocity/frequency Sound velocity is known for many materials, e.g., air The frequency changes, according with: high voice - high frequency (low amplitude) and vice versa
The frequency of electromagnetic energy traveling through a medium can change if what changes?
amplitude
When matter is heated or cooled what about its changes?
its a movement of small particles of matter
Explain how amplitude and pitch affect changes in waves?
In case of mechanical waves, ie waves propagating through material medium the amplitude of the waves decides the intensity of the waves as intensity is directly proportional to the square of its amplitude. Pitch is related to the frequency of the wave. As pitch increases then in one second more number of waves would cross a particular point in the medium. If velocity of the wave in the medium remains constant, the wavelength gets reduced as the pitch increases.
What is the modulating frequency of amplitude modulation?
the frequency range of an am wave is 20herz to 20kilo herz
Why is amplitude modulation susceptible to noise but not frequency modulation?
because noise usually changes the amplitude not frequency.
What is the usage of frequency?
It is a device or electronic circuit that changes the frequency of an oscillator according to the amplitude of modulating signal. For instance, if the modulation is linear, the modulator changes the frequency proportional to the amplitude of the modulating voltage.
What is the usage of frequency modulation?
It is a device or electronic circuit that changes the frequency of an oscillator according to the amplitude of modulating signal. For instance, if the modulation is linear, the modulator changes the frequency proportional to the amplitude of the modulating voltage.
AM radio and FM radio?
AM stands for amplitude modulation, while FM stands for frequency modulation. In AM, the amplitude (the height or depth of the crests or troughs) changes, while in FM, the frequency changes.
What is the formulae for finding amplitude of sound?
Amplitude= velocity/frequency Sound velocity is known for many materials, e.g., air The frequency changes, according with: high voice - high frequency (low amplitude) and vice versa
Multiple choice question answer of AM modulation?
amplitude modulation is where we modulate our signal with a carrier signal amplitude changes but frequency remains constant in amplitude modulation
The frequency of electromagnetic energy traveling through a medium can change if what changes?
amplitude
What is the difference between FM and AM radio waves?
AM means Amplitude(=height) modulation, so the frequency stays the same and the message is coded into variations of the strength of the signal. FM stands for Frequency modulation. Here the strength of the signal stays the same and the message is coded into changes in frequency instead.
What is the difference between amlitude shift key and frequency shift key?
Amplitude shift keying changes the height/power of the transmitted signal without altering the frequency. Frequency shift keying changes the frequency of the transmission without altering the height/power of the transmitted signal. Morse code is an example of amplitude keying where the amplitude is 0 or 100%. RTTY teleprinter uses FSK with two frequencies and the codes that represent text characters are sent with patterns of the two frequencies.
Is it true that information can be carried on a carrier wave by changing or modulating either the amplitude or frequency?
in frequency modulation, frequency of carrier signal changes. so frequency variations of carrier convey all the information in frequency modulation.
Is the speed of the particles in a substance changes when the temperature changes?
Yes, in fact, particle movement is what heat is.
