Communication Systems A woofer should be fed from the input through a High pass filter Band pass filter Low pass filter Band stop filter High pass filter Band pass filter Low pass filter Band stop filter ANSWER DOWNLOAD EXAMIANS APP
Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To prevent overmodulation To regulate oscillator I/P voltage To reduce bandwidth To increase bandwidth To prevent overmodulation To regulate oscillator I/P voltage To reduce bandwidth To increase bandwidth ANSWER DOWNLOAD EXAMIANS APP
Communication Systems DVD uses Video head for recording and laser beam for playback Laser beam for both recording and playback None of these Laser beam for recording and video head for playback Video head for recording and laser beam for playback Laser beam for both recording and playback None of these Laser beam for recording and video head for playback ANSWER DOWNLOAD EXAMIANS APP
Communication Systems VSB modulation is preferred in TV because It reduces the bandwidth requirement to half It results in better reception None of these It avoids phase distortion at low frequencies It reduces the bandwidth requirement to half It results in better reception None of these It avoids phase distortion at low frequencies ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The modulation index of an FM is changed from 0 to 1. How does the transmitted power change? Gets increased by 50 percent Gets doubled Remains unchanged Gets halved Gets increased by 50 percent Gets doubled Remains unchanged Gets halved ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A buffer amplifier is A cathode follower stage None of these A double-tuned amplifier A high gain D.C. amplifier A cathode follower stage None of these A double-tuned amplifier A high gain D.C. amplifier ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS