ECE :: Communication Systems
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A receiver has poor selectivity. It will also have poor
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The depth of modulation is doubled in FM system then, the power transmitted
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A Marconi antenna
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When large amount of power is required, a push pull amplifier is designed for operation as
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In a Vidicon camera tube,
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The distance at which a sky wave is received back on earth decreases with angle of incidence for all angles of incidence.
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A trigonometric function is synonyms to
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A single tone modulating signal Vm cos ωt modulates a carrier A cos ωct. The carrier power (modulated) and side band powers are respectively
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The autocorrelation function of the white noise is
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A.
both sides of the target plate have the coating of tin oxide
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B.
both sides of the target plate have the coating of antimony tri-sulphide
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C.
the side of target plate facing the light has a coating of tin oxide and the side facing electron gun has a coating of antimony trisulphide
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D.
the side of target plate facing the light has a coating of antimony trisulphide while the side facing the electron gun has a coating of tin oxide
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