Communication Systems In Modulation, “carrier” is Speech voltage to be transmitted Resultant wave Voltage with constant frequency, phase or amplitude Voltage for which frequency, phase or amplitude is varied Speech voltage to be transmitted Resultant wave Voltage with constant frequency, phase or amplitude Voltage for which frequency, phase or amplitude is varied ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If output power of a radio receiver is doubled, its volume is increased by __________ dB. -3 1 2 3 -3 1 2 3 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Full duplex operation permits transmission in both directions at the same time. False True False True ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A cordless telephone using separate frequencies for transmission in base and portable units is known as Neither A nor B Either A or B Duplex arrangement Half duplex arrangement Neither A nor B Either A or B Duplex arrangement Half duplex arrangement ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For attenuation of high frequencies we should use Shunt capacitance Series capacitance Inductance Resistance Shunt capacitance Series capacitance Inductance Resistance ANSWER DOWNLOAD EXAMIANS APP
Communication Systems To eliminate ghosts in the picture Change the antenna orientation of location Connect a booster Twist the transmission line Use a longer transmission line Change the antenna orientation of location Connect a booster Twist the transmission line Use a longer transmission line ANSWER DOWNLOAD EXAMIANS APP
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