Communication Systems A buffer amplifier is A cathode follower stage A high gain D.C. amplifier A double-tuned amplifier None of these A cathode follower stage A high gain D.C. amplifier A double-tuned amplifier None of these 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 4E 6E 2E 3E 4E 6E 2E 3E ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which one of the following is analog? Differential PCM PWM Delta modulation PCM Differential PCM PWM Delta modulation PCM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization Is useful in discrimination between reception of adjacent beams Involves critical alignment of transmitting and receiving antenna None of these Is useful in reducing depolarization effect on received wave Is useful in discrimination between reception of adjacent beams Involves critical alignment of transmitting and receiving antenna None of these Is useful in reducing depolarization effect on received wave ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Leak type bias is used in plate modulated class C amplifier to Increase the bandwidth Prevent tuned circuit damping Prevent excessive grid current Prevent over modulation Increase the bandwidth Prevent tuned circuit damping Prevent excessive grid current Prevent over modulation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The frequency range of 300 kHz to 3000 kHz is known as Medium frequency Very high frequency High frequency Low frequency Medium frequency Very high frequency High frequency Low frequency ANSWER DOWNLOAD EXAMIANS APP
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