Electronic Devices - BJT Amplifiers

Exercise :: BJT Amplifiers - Filling the Blanks

21. 

The output voltage and the input voltage are ________ for the common-base configuration.

A. 45º out of phase
B. 90º out of phase
C. 180º out of phase
D. in phase

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

22. 

A common-base configuration has ________ impedance at the input and ________ impedance at the output.

A. high, high
B. high, low
C. low, low
D. low, high

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

23. 

In a common-emitter configuration ________ is the controlling current while ________ is the controlled current.

A. IC, IB
B. IC, IE
C. IB, IC
D. None of the above

Answer: Option C

Explanation:

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24. 

For the common-emitter and common-base configurations, the magnitude of ________ and ________ is often not included in the model.

A. hr, ho
B. hi, he
C. hi, hr
D. he, ho

Answer: Option A

Explanation:

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25. 

An emitter-follower has ________ impedance at the input and ________ impedance at the output.

A. high, high
B. low, high
C. high, low
D. low, low

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.