Communication Systems Fourier analysis indicate that a square wave can be represented as Fundamental and subharmonic sine waves A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics A fundamental sine wave and harmonics Fundamental and subharmonic sine waves A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics A fundamental sine wave and harmonics ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is used to generate PDM? Schmitt trigger Free running multi-vibrator JK flip-flop Monostable multi-vibrator Schmitt trigger Free running multi-vibrator JK flip-flop Monostable multi-vibrator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz. 70.2 80.9 113 102.3 70.2 80.9 113 102.3 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following does not cause losses in optical fibre cables? Impurities Attenuation in glass Microbending Stepped index operation Impurities Attenuation in glass Microbending Stepped index operation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In EM waves, polarization Results from longitudinal nature of waves Is always vertical in an isotropic medium Is caused by reflection Is due to transverse nature of waves Results from longitudinal nature of waves Is always vertical in an isotropic medium Is caused by reflection Is due to transverse 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 6E 3E 4E 2E 6E 3E 4E 2E ANSWER DOWNLOAD EXAMIANS APP