Communication Systems For attenuation of high frequencies we should use Series capacitance Inductance Resistance Shunt capacitance Series capacitance Inductance Resistance Shunt capacitance ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In EM waves, polarization Is caused by reflection Is due to transverse nature of waves Is always vertical in an isotropic medium Results from longitudinal nature of waves Is caused by reflection Is due to transverse nature of waves Is always vertical in an isotropic medium Results from longitudinal nature of waves 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 halved Gets doubled Remains unchanged Gets increased by 50 percent Gets halved Gets doubled Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The main function of a balanced modulator is to Produce balanced modulation of a carrier wave Suppress carrier signal in order to create a single-sideband or double sideband Produce 100% modulation Limit noise picked by a receiver Produce balanced modulation of a carrier wave Suppress carrier signal in order to create a single-sideband or double sideband Produce 100% modulation Limit noise picked by a receiver ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which one of the following is analog? PCM PWM Differential PCM Delta modulation PCM PWM Differential PCM Delta modulation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a low level AM system, the amplifiers modulated stage must be Linear devices Non-linear devices Harmonic devices Class C amplifiers Linear devices Non-linear devices Harmonic devices Class C amplifiers ANSWER DOWNLOAD EXAMIANS APP
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