FET Amplifiers - General Questions (5)

Directions to Solve

FET Amplifiers - General Questions

33.

Referring to the figure below, determine the output impedance for V_GS = –3 V at V_DS = 5 V.

mcq08_01200

A.	100 k
B.	80 k
C.	25 k
D.	5 k

Answer: Option A

Explanation:

No answer description available for this question

34.

What common factor determines the voltage gain and input resistance of a common-gate amplifier?

A.	RD
B.	RL
C.	gm

Answer: Option C

Explanation:

No answer description available for this question

35.

Which FET amplifier(s) has (have) a phase inversion between input and output signals?

A.	common-gate
B.	common-drain
C.	common-source
D.	all of the above

Answer: Option C

Explanation:

No answer description available for this question

36.

Refer to this figure. If I_D = 4 mA, find the value of V_GS.

mcq8_1013_1

A.	10.8 V
B.	6 V
C.	–0.7 V
D.	–6 V

Answer: Option D

Explanation:

No answer description available for this question.

37.

Refer to this figure. If R₇ were to decrease in value, V_out would

mcq8_1017_1 (2)

A.	increase.
B.	decrease.
C.	remain the same.
D.	distort.

Answer: Option B

Explanation:

No answer description available for this question.

38.

Class D amplifiers differ from all other classes of amplifiers because

A.	the output transistors are operated as switches.
B.	of their very low input capacitance.
C.	of their high-frequency response capabilities.
D.	they employ dual MOSFETs.

Answer: Option A

Explanation:

No answer description available for this question.

39.

Refer to this figure. For midpoint biasing, I_D would be

mcq8_1007_1 (3)

A.	10 mA.
B.	7.5 mA.
C.	5 mA.
D.	2.5 mA.

Answer: Option C

Explanation:

No answer description available for this question.

40.

On which of the following parameters does r_d have no or little impact in a source-follower configuration?

A.	Zi
B.	Zo
C.	Av
D.	All of the above

Answer: Option D

Explanation:

No answer description available for this question.

FET Amplifiers - General Questions (5)

FET Amplifiers - General Questions

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