FET Amplifiers – Exercise – 1

46. Nota

47. Nota

48. For what value of ID is gm equal to 0.5 gm0?

(a) 0 mA
(b) 0.25 IDSS
(c) 0.5 IDSS
(d) IDSS

Answer
Answer : (b)
Explanation
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49. What is the typical value for the input impedance Zi for JFETs?

(a) 100 k
(b) 1 M
(c) 10 M
(d) 1000 M

Answer
Answer : (d)
Explanation
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50. Referring to the transfer characteristics shown below, calculate gm at VGSQ = –1 V.

(a) 2 mS
(b) 3 mS
(c) 4 mS
(d) 5 mS

Answer
Answer : (b)
Explanation
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