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Electronic Devices and Circuits: Biasing Circuits of BJTs and MOSFETs
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Electronic Devices and Circuits: Biasing Circuits of BJTs and MOSFETs
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25 Questions

1. Which of the following is true for the triode region?
2. In an NPN silicon transistor, α=0.995, IE=10mA and leakage current ICBO=0.5µA. Determine ICEO.
3. The input resistance in a CB transistor is given by _________
4. For MOSFET is to be used as a switch then it must operate in
5. In CB configuration, the value of α=0.98A. A voltage drop of 4.9V is obtained across the resistor of 5KΩ when connected in collector circuit. Find the base current.
6. In the operation of an NPN transistor, the electrons cross which region?
7. The input characteristics of a CB transistor resembles_________
8. Which of the following points locates the quiescent point?
9. The change in collector emitter voltage from 6V to 9V causes increase in collector current from 6mA to 6.3mA. Determine the dynamic output resistance.
10. Which of the following cases damage the transistor?
11. A transistor has an IE of 0.9mA and amplification factor of 0.98. What will be the IC?
12. The value of αac for all practical purposes, for commercial transistors range from_________
13. When the collector junction is reverse biased and emitter junction is forward biased, the operating region of the transistor is called_________
14. Which is true for the value of Avo for common source (Represented by A1) and common source with a source resistance (represented by A2).
15. The current iD
16. Determine the value of emitter current and collector current of a transistor having α=0.98 and collector to base leakage current ICBO=4µA. The base current is 50µA.
17. When the signal is applied, the ratio of change of collector current to the ratio of change of base current is called_________
18. The range of β is _________
19. When does the transistor act like an open switch?
20. If the emitter-base junction is forward biased and the collector-base junction is reverse biased, what will be the region of operation for a transistor?
21. If the value of Rin for the common source configuration is R1 and that for common source with a source resistance configuration is R2 ideally. The ratio of R1/R2 will be
22. In CE configuration, if the voltage drop across 5kΩ resistor connected in the collector circuit is 5V. Find the value of IB when β=50.
23. The base current amplification factor β is given by_________
24. The output resistance is given by _________
25. The advantages over the vacuum triode for a junction transistor is_________

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