Communication Systems The characteristic impedance of a twin wire feeder used for TV signals is about 300 ohm 1000 ohm 500 ohm 100 ohm 300 ohm 1000 ohm 500 ohm 100 ohm ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If in a broadcasting studio, a 1000 kHz carrier is modulated by an audio signal of frequency range 100-5000 kHz, the width of channel is __________ kHz. 4.9 5 995 10 4.9 5 995 10 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems SSB can be generated by All of these Filter method Phase cancellation method Good attenuation characteristics All of these Filter method Phase cancellation method Good attenuation characteristics ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In a FM receiver, amplitude limiter Eliminates any change in amplitude of received FM signals None of these Amplifiers low frequency signals Reduces the amplitude of signals Eliminates any change in amplitude of received FM signals None of these Amplifiers low frequency signals Reduces the amplitude of signals ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The colour of an object is decided by Reflected colour for opaque object and wavelength transmitted through it for transparent objects None of these The wavelength transmitted through it The reflected colour Reflected colour for opaque object and wavelength transmitted through it for transparent objects None of these The wavelength transmitted through it The reflected colour ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A buffer amplifier is None of these A cathode follower stage A double-tuned amplifier A high gain D.C. amplifier None of these A cathode follower stage A double-tuned amplifier A high gain D.C. amplifier ANSWER DOWNLOAD EXAMIANS APP
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