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
67. The source terminal of a JFET corresponds to …………… of a vacuum tube.
(a) plate
(b) cathode
(c) grid
(d) none of the above
68. The output characteristics of a JFET closely resemble the output characteristics of a …………… valve.
(a) pentode
(b) tetrode
(c) triode
(d) diode
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
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
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