Modulation is done in____________________

Related Mcqs:

1. Over modulation results in ______________?

   A. Weakening of the signal B. Excessive carrier power C. Distortion D. None of the above...

2. At 100% modulation, the power in each sideband is _____________ of that of carrier?

   A. 50% B. 40% C. 60% D. 25%...

3. In amplitude modulation, bandwidth is ____________ the audio signal frequency?

   A. Thrice B. Four times C. Twice D. None of the above...

4. In pakistan, ______________ modulation is used for radio transmission?

   A. Frequency B. Amplitude C. Phase D. None of the above...

5. In amplitude modulation, the _____________of carrier is varied according to the strength of the signal?

   A. Amplitude B. Frequency C. Phase D. None of the above...

6. If modulation is 100% then signal amplitude is ____________arrier amplitude?

   A. Equal to B. Greater than C. Less than D. None of the above...

7. If level of modulation is increased ______________ power is increased?

   A. Carrier B. Sideband C. Carrier as well as sideband D. None of the above...

8. A 100 V carrier is made to vary between 160 V and 40 V by the signal. What is the modulation factor ?

   A. 3 B. 6 C. 5 D. None of the above...

9. If Amin = 40 and Amax = 60, what is the percentage of modulation?

   A. 20 % B. 40 % C. 50 % D. 10 %...

10. As the modulation level is increased, the carrier power__________________?

    A. Is increased B. Remains the same C. Is decreased D. None of the above...