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FET – 2 – 5

71. For VGS= 0 V, the drain current becomes constant when VDS exceeds ……………

(a) cut off
(b) VDD
(c) VP
(d) 0 V

Answer
Answer : (c)

Explanation
No answer description available for this question. Let us discuss.

72. A certain JFET data sheet gives VGS(off) = 4 V. The pinch-off voltage VP is ………….

(a) + 4 V
(b) -4 V
(c) dependent on VGS
(d) data insufficient

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

73. The constant-current region of a JFET lies between ……………

(a) cut off and saturation
(b) cut off and pinch-off
(c) 0 and IDSS
(d) pinch-off and breakdown

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

74. At cut-off, the JFET channel is ……………

(a) at its widest point
(b) completely closed by the depletion region
(c) extremely narrow
(d) reverse biased

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

75. In a common-source JFET amplifier, the output voltage is ……………

(a) 180° out of phase with the input
(b) in phase with the input
(c) 90° out of phase with the input
(d) taken at the source

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

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