Exercise: Field Effect Transistors

Questions for: Field Effect Transistors

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: D
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A JFET data sheet specifies VGS(off) = –6 V and IDSS = 8 mA. Find the value of ID when VGS = –3 V.
A:
2 mA
B:
4 mA
C:
8 mA
D:
none of the above
Answer: A
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Refer to figure shown below. What is the value of IG?

A:
6 mA
B:
4 mA
C:
2 mA
D:
0 mA
Answer: D
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Identify the p-channel E-MOSFET.

A:
a
B:
b
C:
c
D:
d
Answer: D
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For a JFET, the change in drain current for a given change in gate-to-source voltage, with the drain-to-source voltage constant, is
A:
breakdown.
B:
reverse transconductance.
C:
forward transconductance.
D:
self-biasing.
Answer: C
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