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Electrical Engineering - Single Stage Transistor Amplifiers MCQs
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Avg score: 33% • Most missed: “The purpose of capacitors in a transistor amplifier is to ………………”
Electrical Engineering - Single Stage Transistor Amplifiers MCQs
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25 Questions

1. The purpose of d.c. conditions in a transistor is to …………..
2. The radio wave picked up by the receiving antenna is amplified about …….. times to have reasonable sound output
3. It is generally desired that a transistor should have …………….. input impedance
4. If RC and RL represent the collector resistance and load resistance respectively in a single stage transistor amplifier, then a.c. load is ……..
5. A single stage transistor amplifier with collector load RC and emitter resistance RE has a d.c. load of ……….
6. A transistor amplifier has high output impedance because ………..
7. If the collector supply is 10V, then collector cut off voltage under d.c. conditions is ………….
8. The point of intersection of d.c. and a.c. load lines is called……………..
9. When a transistor amplifier is operating, the current in any branch is ……………
10. The slope of a.c. load line is ……………… that of d.c. load line
11. The phase difference between the output and input voltages of an amplifier is ………………..
12. In the d.c. equivalent circuit of a transistor amplifier, the capacitors are considered ……………..
13. The ratio of output impedance of a CE amplifier is ……………
14. The value of collector load RC in a transistor amplifier is ………… the output impedance of the transistor.
15. CC configuration is used for impedance matching because its
16. In a CE amplifier, the phase difference between voltage across collector load RC and signal voltage is ………..
17. The output power of a transistor amplifier is more than the input power because the additional power is supplied by …………
18. In transistor amplifiers, we generally use ………….. capacitors.
19. The purpose of capacitors in a transistor amplifier is to ………………
20. In order to get more voltage gain from a transistor amplifier, the transistor used should have …………..
21. In the zero signal conditions, a transistor sees ……………….. load
22. The purpose of emitter capacitor (i.e. capacitor across RE) is to ……….
23. When an a.c. signal is applied to an amplifier, ,the operating point moves along …………….
24. If the power and current gains of a transistor amplifier are 16500 and 100 respectively, then voltage gain is ………
25. In a CE amplifier, voltage gain = ……………. x RAC/Rin

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