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प्रश्न
Define modulation and transducer
उत्तर
Modulation:-
The process of superimposing a low frequency signal on a high frequency wave, which acts as a carrier wave for long distance transmission is known as modulation.
Transducer:-
A transducer is a device, which converts one form of energy into another.
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संबंधित प्रश्न
The process of superimposing a low frequency signal on a high frequency wave is_______ .
Define modulation index.
State three important factors showing the need for translating a low frequency signal into a high frequency wave before transmission
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C(t) = 2sin(8πt) volt.
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Answer the following question.
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A carrier wave Vc(t) = 160 sin(2π × 106t) volts is made to vary between Vmax = 200 V and Vmin = 120 V by a message signal Vm(t) = Am sin(2π × 103t) volts. The peak voltage Am of the modulating signal is ______.
A transmitting antenna has a height of 320 m and that of receiving antenna is 2000 m. The maximum distance between them for satisfactory communication in line of sight mode is 'd'. The value of 'd' is ______ km.
