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EE AND ECE - Multistage Transistor Amplifiers MCQs
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EE AND ECE - Multistage Transistor Amplifiers MCQs
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25 Questions

1. The best frequency response is of ………. coupling
2. RC coupling is generally confined to low power applications because of ………
3. The final stage of a multistage amplifier uses ………………
4. The value of emitter capacitor CE in a multistage amplifier is about ……..
5. RC coupling is used for ………………. amplification
6. The ear is not sensitive to ………….
7. The number of stages that can be directly coupled is limited because ……..
8. The output of a microphone is rated at -52 db. The reference level is 1V under specified conditions. What is the output voltage of this microphone under the same sound conditions?
9. Transformer coupling provides high efficiency because …………
10. A current amplification of 2000 is a gain of …………….
11. Transformer coupling is generally employed when load resistance is ………
12. The lower and upper cut off frequencies are also called ………………… frequencies
13. The total gain of a multistage amplifier is less than the product of the gains of individual stages due to …………
14. When a multistage amplifier is to amplify d.c. signal, then one must use …….. coupling
15. In obtaining the frequency response curve of an amplifier, the …………
16. A radio receiver has …………… of amplification
17. 1 db corresponds to ………….. change in power level
18. The gain of an amplifier is expressed in db because ………..
19. In an RC coupling scheme, the coupling capacitor CC must be large enough ………..
20. An advantage of RC coupling scheme is the ………….
21. The power output of an audio system is 18 W. For a person to notice an increase in the output (loudness or sound intensity) of the system, what must the output power be increased to ?
22. If the power level of an amplifier reduces to half, the db gain will fall by …….
23. In RC coupling, the value of coupling capacitor is about ……….
24. In an RC coupled amplifier, the voltage gain over mid-frequency range …………….
25. Transformer coupling is used for ………….. amplification

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