field-effect-transistors-(fet) electronics question and answers -Page 4

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Field Effect Transistors (FET) problems

1. How will electrons flow through a p-channel JFET?
Options
A. from source to drain
B. from source to gate
C. from drain to gate
D. from drain to source

Correct Answer: from drain to source

2. When an input delta of 2 V produces a transconductance of 1.5 mS, what is the drain current delta?
Options
A. 666 mA
B. 3 mA
C. 0.75 mA
D. 0.5 mA

Correct Answer: 3 mA

3. Breakdown voltage and pinch-off voltage of a JFET are different terms for the same voltage level.
Options
A. True
B. False

Correct Answer: False

4. A JFET can be either a current-controlled device or a voltage-controlled device.
Options
A. True
B. False

Correct Answer: True

5. The charge carriers in a junction field effect transistor (JFET) will flow from source to drain in a p-channel and from drain to source in an n-channel.
Options
A. True
B. False

Correct Answer: False

6. In a voltage-divider JFET circuit, I_D is a maximum when V_GS = 0 V.
Options
A. True
B. False

Correct Answer: True

7. An enhancement-type MOSFET or E-MOSFET can be turned on when the channel is depleted.
Options
A. True
B. False

Correct Answer: False

8. A MOSFET has an isolated gate.
Options
A. True
B. False

Correct Answer: True

9. The gate-biased JFET characteristic curve includes I_DS.
Options
A. True
B. False

Correct Answer: False

10. A JFET has 3 terminals: gate, drain, and source.
Options
A. True
B. False

Correct Answer: True

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