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FET – 2 – 4

66. The transconductance of a JFET ranges from ……………

(a) 100 to 500 mA/V
(b) 500 to 1000 mA/V
(c) 0.5 to 30 mA/V
(d) above 1000 mA/V

ANSWER

EXPLANATION

67. The source terminal of a JFET corresponds to …………… of a vacuum tube.

(a) plate
(b) cathode
(c) grid
(d) none of the above

ANSWER

EXPLANATION

68. The output characteristics of a JFET closely resemble the output characteristics of a …………… valve.

(a) pentode
(b) tetrode
(c) triode
(d) diode

ANSWER

EXPLANATION

69. If the cross-sectional area of the channel in n-channel JFET increases, the drain current ……………

(a) is increased
(b) is decreased
(c) remains the same
(d) none of the above

ANSWER

EXPLANATION

70. The channel of a JFET is between the ……………

(a) gate and drain
(b) drain and source
(c) gate and source
(d) input and output

ANSWER

EXPLANATION

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