Communication Systems If output power of a radio receiver is doubled, its volume is increased by __________ dB. 3 -3 2 1 3 -3 2 1 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The characteristic impedance of a twin wire feeder used for TV signals is about 500 ohm 300 ohm 100 ohm 1000 ohm 500 ohm 300 ohm 100 ohm 1000 ohm ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In EM waves, polarization Is caused by reflection Is due to transverse nature of waves Is always vertical in an isotropic medium Results from longitudinal nature of waves Is caused by reflection Is due to transverse nature of waves Is always vertical in an isotropic medium Results from longitudinal nature of waves ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a plate-modulated class C amplifier the plate supply voltage is E. The maximum plate cathode voltage could be almost high as 3E 6E 2E 4E 3E 6E 2E 4E ANSWER DOWNLOAD EXAMIANS APP
Communication Systems FM transmitting and receiving equipment as compared to AM equipment is None of these Cheaper Almost equally costly Costly None of these Cheaper Almost equally costly Costly ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is 10 kHz 1280 kHz 70 kHz 35 kHz 10 kHz 1280 kHz 70 kHz 35 kHz ANSWER DOWNLOAD EXAMIANS APP
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