61. If the gate of a JFET is made less negative, the width of the conducting channel …….
(a) remains the same
(b) is decreased
(c) is increased
(d) none of the above
62. The pinch-off voltage of a JFET is about …….
(a) 5 V
(b) 0.6 V
(c) 15 V
(d) 25 V
63. The gate voltage in a JFET at which drain current becomes zero is called ………….. voltage.
(a) saturation
(b) pinch-off
(c) active
(d) cut-off
64. The drain current ID in a JFET is given by …………..
(a) ID=IDSS{1-(VGS/VP)}^2
(b) ID=IDSS{1+(VGS/VP)}^2
(c) ID=IDSS{1-(VP/VGS)}^2
(d) ID=IDSS{1+(VP/VGS)}^2
65. In a FET, there are …………… pn junctions at the sides.
(a) three
(b) four
(c) five
(d) two
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