Electronic Devices - BJT Amplifiers

Exercise :: BJT Amplifiers - General Questions

16. 

A common-emitter amplifier has ________ voltage gain, ________ current gain, ________ power gain, and ________ input impedance.

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

Answer: Option B

Explanation:

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17. 

What is the range of the input impedance of a common-base configuration?

A. A few ohms to a maximum of 50
B. 1 k to 5 k
C. 100 k to 500 k
D. 1 M to 2 M

Answer: Option A

Explanation:

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18. 

The advantage that a Sziklai pair has over a Darlington pair is

A. higher current gain.
B. less input voltage is needed to turn it on.
C. higher input impedance.
D. higher voltage gain.

Answer: Option B

Explanation:

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19. 

What is the typical range of the output impedance of a common-emitter configuration?

A. 10 to 100
B. 1 k to 5 k
C. 40 k to 50 k
D. 500 k to 1 k

Answer: Option C

Explanation:

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20. 

What is the unit of the parameter ho?

A. Volt
B. Ohm
C. Siemen
D. No unit

Answer: Option C

Explanation:

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