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FET Amplifiers - General Questions (3)

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FET Amplifiers - General Questions

17. 
 

Referring to this figure, calculate Zi for yos = 20 mu (1)1 S. Assume VGSQ = −2.2V.   

A. 300.2 omega (3)
B. 330.4 omega (3)
C. 340.5 omega (3)
D. 350.0 omega (3)

Answer: Option B

Explanation:

No answer description available for this question.

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18. 

Determine the value for RD if the ac gain is 8.

mcq08_03300

A. 1.51 k omega (3)
B. 1.65 k omega (3)
C. 1.85 k omega (3)
D. 2.08 k omega (3)

Answer: Option B

Explanation:

No answer description available for this question.

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19. 

Refer to this figure. If C2 shorted, Vout would

mcq8_1017_1 (3)

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

Answer: Option D

Explanation:

No answer description available for this question.

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20. 

Which of the following is (are) related to depletion-type MOSFETs?

A. mca08_0280a can be negative, zero, or positive.
B. gm can be greater or smaller than gm0.
C. ID can be larger than IDSS.
D. All of the above

Answer: Option D

Explanation:

No answer description available for this question.
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21. 

Refer to this figure. The approximate value of Rin is

mcq8_1013_1 (2)

A. 100 M omega (3)
B. 1.5 k omega (3)
C. 3.3 k omega (3)
D. 48 M omega (3)

Answer: Option A

Explanation:

No answer description available for this question.

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22. 

Refer to this figure. If gm = 4000 mS and a signal of 75 mV rms is applied to the gate, calculate the p-p output voltage.

mcq8_1013_1 (1)

A. 990 mV
B. 1.13 V p-p
C. 2.8 V p-p
D. 990 V p-p

Answer: Option C

Explanation:

No answer description available for this question. 

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23. 

The more horizontal the characteristic curves on the drain characteristics, the ________ the output impedance.

A. less
B. same
C. greater

Answer: Option C

Explanation:

No answer description available for this question.

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24. 

Referring to this figure, calculate Zo for VGSQ = –3.2 V.

mcq08_02600 (1)

A. 362.52 omega (3)
B. 340.5 omega (3)
C. 420.5 omega (3)
D. 480.9 omega (3)

Answer: Option D

Explanation:

No answer description available for this question.

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