BJT Amplifiers - General Questions

Directions to Solve

BJT Amplifiers - General Questions

A Darlington pair amplifier has

A.	high input impedance and high voltage gain.
B.	low input impedance and low voltage gain.
C.	a voltage gain of about 1 and a low input impedance.
D.	a low voltage gain and a high input impedance.

Answer: Option D

Explanation:

No answer description available for this question.

A Darlington pair provides beta ________ for ________ input resistance.

A.	multiplication, decreased
B.	multiplication, increased
C.	division, decreased

Answer: Option B

Explanation:

No answer description available for this question.

Refer to this figure. If an emitter bypass capacitor was installed, what would the new A_v be?

Refer to this figure. If an emitter bypass capacitor was installed, what would the new Av be? mcq6_1009_1 (4)

A.	4.96
B.	125
C.	398
D.	600

Answer: Option D

Explanation:

No answer description available for this question.

The ________ the source resistance and/or ________ the load resistance, the less the overall gain of an amplifier.

A.	smaller, smaller
B.	smaller, larger
C.	larger, smaller
D.	larger, larger

Answer: Option C

Explanation:

No answer description available for this question.

The input impedance of a BJT amplifier is purely ________ in nature and can vary from a few ________ to ________.

A.	resistive, ohms, megohms
B.	capacitive, microfarads, farads
C.	inductive, millihenrys, henrys
D.	None of the above

Answer: Option A

Explanation:

No answer description available for this question.

Which of the following techniques can be used in the sinusoidal ac analysis of transistor networks?

A.	Small-signal
B.	Large-signal
C.	Small- or large-signal
D.	None of the above

Answer: Option C

Explanation:

No answer description available for this question.

What is the controlling current in a common-base configuration?

A.	Ie
B.	Ic
C.	Ib
D.	None of the above

Answer: Option A

Explanation:

No answer description available for this question.

What is r_e equal to in terms of h parameters?

A.	hre / hoe
B.	(hre + 1) / hoe
C.	hie – (hre / hoe)(1 + hfe)
D.	hfe
E.	none of the above

Answer: Option A

Explanation:

No answer description available for this question.

BJT Amplifiers - General Questions

BJT Amplifiers - General Questions

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