Communication Systems Leak type bias is used in plate modulated class C amplifier to Prevent over modulation Prevent tuned circuit damping Increase the bandwidth Prevent excessive grid current Prevent over modulation Prevent tuned circuit damping Increase the bandwidth Prevent excessive grid current ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The direction of rotation of a CD is Mostly anticlockwise but some times clockwise Clockwise Clockwise or anticlockwise depending on frequency of data stored Anticlockwise Mostly anticlockwise but some times clockwise Clockwise Clockwise or anticlockwise depending on frequency of data stored Anticlockwise ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For AM receivers the standard IF frequency is 1.07 MHz 455 kHz 106 kHz 10.7 MHz 1.07 MHz 455 kHz 106 kHz 10.7 MHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In Modulation, “carrier” is Speech voltage to be transmitted Voltage with constant frequency, phase or amplitude Voltage for which frequency, phase or amplitude is varied Resultant wave Speech voltage to be transmitted Voltage with constant frequency, phase or amplitude Voltage for which frequency, phase or amplitude is varied Resultant wave ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is 10 kHz 70 kHz 1280 kHz 35 kHz 10 kHz 70 kHz 1280 kHz 35 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a low level AM system, the amplifiers modulated stage must be Class C amplifiers Harmonic devices Non-linear devices Linear devices Class C amplifiers Harmonic devices Non-linear devices Linear devices ANSWER DOWNLOAD EXAMIANS APP
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