Questions 1. An audio signal consists of frequencies in the range of 100Hz to 5.5KHz. What is the minimum frequency at which it should be sampled in order to transmit it through pulse modulation? 2. Draw a TDM signal which is handling three different signals using PWM? 3. What do you infer from the frequency spectrum of a PWM signal? 4. Clock frequency in a PWM system is 2.5 kHz and modulating signal frequency is 500Hzhowmany pulses per cycle of signal occur in PWM output? Draw the PWM signal? 5. Why should the curve for pulse width Vs modulating voltage be linear? 6. What is the other name for PWM? 7. What is the disadvantage of PWM? 8. Will PWM work if the synchronization between Tx and Rx fails? 9. Why integrator is required in demodulation of PWM? 10. What kind of conversion is done in PWM generation?