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Electrical Engineering · all questions

Modulation And Demodulation
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A 50 kW carrier is to be amplitude modulated to a level of 85%. What is the carrier power after modulation?

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The major advantage of FM over AM is ___________

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In an AM wave, the majority of the power is in ___________

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As the modulation level is increased, the carrier power ___________

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Modulation refers to a low-frequency signal controlling the ___________

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In a radio receiver, noise is generally developed at ___________

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The diode detector in an AM radio receiver is usually found ___________

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The function of ferrite antenna is to ___________

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If Amin = 40 and Amax = 60, what is the percentage of modulation?

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The signal voltage induced in the aerial of a radio receiver is of the order of ___________

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In India, ___________ modulation is used for radio transmission

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When the modulating signal controls the frequency of the carrier, we get___________

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In an AM wave useful power is carrier by ___________

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In a radio receiver, we generally use ___________ oscillator as a local oscillator

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In radio transmission, the medium of transmission is ___________

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In superhetrodyne receiver, the input at mixer stage is ___________

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Overmodulation results in ___________

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The letters AVC stand for ___________

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In a TRF radio receiver, the RF and detection stages are tuned to ___________

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The IF is 455 kHz. If the radio receiver is tuned to 855 kHz, the local oscillator frequency is ___________

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