Communication Systems The direction of rotation of a CD is Anticlockwise Clockwise or anticlockwise depending on frequency of data stored Clockwise Mostly anticlockwise but some times clockwise Anticlockwise Clockwise or anticlockwise depending on frequency of data stored Clockwise Mostly anticlockwise but some times clockwise ANSWER DOWNLOAD EXAMIANS APP
Communication Systems PAM stands for Pulse Amplitude Modulation Pulse Analogue Modulation Phase Amplitude Modulation Phase Analogue Modulation Pulse Amplitude Modulation Pulse Analogue Modulation Phase Amplitude Modulation Phase Analogue Modulation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In TV systems, equalising pulses are sent during Horizontal blanking Horizontal retrace Serrations Vertical blanking Horizontal blanking Horizontal retrace Serrations Vertical blanking 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 halved Gets doubled Gets increased by 50 percent Remains unchanged Gets halved Gets doubled Gets increased by 50 percent Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is an indirect way of generating FM? Reactance FET modulator Reactance bipolar transistor Varactor diode modulator Armstrong modulator Reactance FET modulator Reactance bipolar transistor Varactor diode modulator Armstrong modulator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Leak type bias is used in plate modulated class C amplifier to Prevent over modulation 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 ANSWER DOWNLOAD EXAMIANS APP
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