Communication Systems A woofer should be fed from the input through a Band stop filter Band pass filter Low pass filter High pass filter Band stop filter Band pass filter Low pass filter High pass filter ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In case of frequency modulation, modulating voltage remains constant if the modulating frequency is lowered, then Amplitude of distant sidebands decreases Amplitude of distant sidebands increases Amplitude of distant sidebands remains constant Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands decreases Amplitude of distant sidebands increases Amplitude of distant sidebands remains constant Amplitude of distant sidebands first increases, then decreases ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Commercial Frequency deviation of FM is 70 kHz 80 kHz 75 kHz 65 kHz 70 kHz 80 kHz 75 kHz 65 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A buffer amplifier is A double-tuned amplifier None of these A high gain D.C. amplifier A cathode follower stage A double-tuned amplifier None of these A high gain D.C. amplifier A cathode follower stage ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is 35 kHz 1280 kHz 10 kHz 70 kHz 35 kHz 1280 kHz 10 kHz 70 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is The lower modulating power requirement High power output per transistor Better linearity Improved efficiency The lower modulating power requirement High power output per transistor Better linearity Improved efficiency ANSWER DOWNLOAD EXAMIANS APP