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Electronic Devices and Circuit Theory:: Field-Effect Transistors
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General Questions
Exercise
General Questions
True or False
"
1
In a self-biased JFET circuit, if VD = VDD then ID = ________.
A.
0
B.
cannot be determined from information above
Answer & Explanation
Option A
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2
What three areas are the drain characteristics of a JFET (VGS = 0) divided into?
A.
ohmic, constant-current, breakdown
B.
pinch-off, constant-current, avalanche
C
ohmic, constant-voltage, breakdown
Answer & Explanation
Option A
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3
Which of the following devices has the highest input resistance?
A.
diode
B.
JFET
C
MOSFET
D.
bipolar junction transistor
Answer & Explanation
Option C
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4
A JFET data sheet specifies VGS(off) = –10 V and IDSS = 8 mA. Find the value of ID when VGS = –3 V.
A.
2 mA
B.
1.4 mA
C
4.8 mA
D.
3.92 mA
Answer & Explanation
Option D
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5
A dual-gated MOSFET is
A.
a depletion MOSFET.
B.
an enhancement MOSFET.
C
a VMOSFET.
D.
either a depletion or an enhancement MOSFET.
Answer & Explanation
Option D
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