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Electronic Devices - BJT Amplifiers

Exercise : BJT Amplifiers - General Questions
41.
Under which of the following conditions is the output impedance of the network approximately equal to RC for a common-emitter fixed-bias configuration?
ro 10RC
ro < 10RC
ro < ro
ro > ro
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Which of the following gains is less than 1 for a common-base configuration?
Ai
Av
Ap
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Which of the following define(s) the conversion efficiency?
Ac power to the load/ac input power
Ac power to the load/dc power supplied
Dc output power/ac input power
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
The dc emitter current of a transistor is 8 mA. What is the value of re?
320
13.3 k
3.125
5.75
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Which of the following should be done to obtain the ac equivalent of a network?
Set all dc sources to zero
Replace all capacitors by a short-circuit equivalent.
Remove all elements bypassed by the short-circuit equivalent.
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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