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Electronics and Communication Electronic Devices And Circuits Difficulty: Medium

In information theory, the entropy is Which one of the following statements is correct? Digital modulation techniques are used in satellite communication systems since The feedback control system shown in figure is stable for values of K and T Consider a real-valued base-band signal x(t), band limited to 10 kHz. The Nyquist rate for the signal $${\text{y}}\left( {\text{t}} \right) = {\text{x}}\left( {\text{t}} \right){\text{x}}\left( {1 + \frac{{\text{t}}}{2}} \right)$$ is The best electronic device for fast switching is