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Electronics and Communication Digital Communication Difficulty: Medium

Which of the following technology distributes the coverage of the cell and extends the cell boundary to hard-to-reach places? If a common emitter amplifier with an emitter resistance R e has an overall trans-conductance gain of -1 mA/V, a voltage gain of -4 and desensitivity of 50, then the value of the emitter resistance R e would be: Let x(t) = cos(10πt) + cos(30πt) be sampled at 20 Hz and reconstructed using an ideal low-pass filter with cut-off frequency of 20 Hz. The frequency/frequencies present in the reconstructed signal is/are What is transmitted along with the call initiation request during the origin of call by a mobile? The phenomenon of dielectric hysteresis occurs with