Questions on electronics and communication engineering - 4

E.C.E 4

These questions depends upon the Topic 'Amplitude Modulation'

1. Speech amplifiers are usually operated as?
2. In a low level AM system, amplifiers following the modulated stage must be?
3. Low level modulating AM transmitter shows which property?
4. What happens when modulation index is more than 100% in AM?
5. What is the core function of a modulator?
6. Plot carrier transmission contains?
7. Which kind of modulation amplifiers are used in AM transmitter?
8. What is the main requirement for a long wave AM broadcast transmitter?
9. In a low level AM transmitter, the amplifier following the modulated state must be.
10. Modulation index lies between?
11. The power rating of a radio transmitter is around?
12. How we can determine the frequency of the piezoelectric effect?

E.C.E 1
E.C.E 2
E.C.E 3