Electronic Devices - BJT Amplifiers

Exercise :: BJT Amplifiers - General Questions

6. 

Which of the following conditions must be met to allow the use of the approximate approach in a voltage-divider bias configuration?

A. re > 10R2
B. RE > 10R2
C. RE < 10R2
D. re < 10R2

Answer: Option D

Explanation:

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7. 

Refer to this figure. Determine the value of Av.

A. 49.6
B. 5
C. 100
D. 595

Answer: Option B

Explanation:

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8. 

For a common-emitter amplifier, the purpose of swamping is

A. to minimize gain.
B. to reduce the effects of r'e
C. to maximize gain.
D. no purpose.

Answer: Option B

Explanation:

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9. 

What is the typical value of the current gain of a common-base configuration?

A. Less than 1
B. Between 1 and 50
C. Between 100 and 200
D. Undefined

Answer: Option A

Explanation:

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10. 

What is the most important r parameter for amplifier analysis?

A. rb
B. rc
C. re

Answer: Option C

Explanation:

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