FET(Field Effect Transistors) MCQ Questions & Answers | Electrical Engineering

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Important Theory

6.
If the reverse bias on the gate of a JFET is increased, then width of the conducting channel ___________

A. is decreased

B. is increased

C. remains the same

D. none of the above

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7.
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

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8.
If the cross-sectional area of the channel in n-channel JEFT increases, the drain current ___________

A. is increased

B. is decreased

C. remains the same

D. none of the above

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9.
In a certain common source D-MOSFET amplifier, Vds =3.2 V r.m. and Vgs = 280 mV r.m.s. The voltage gain is ___________

A. 1

B. 11.4

C. 8.75

D. 3.2

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10.
In a certain CS JFET amplifier, RD= 1kΩ , RS= 560Ω , VDD=10V and gm= 4500 µS. If the source resistor is completely bypassed, the voltage gain is ___________

A. 450

B. 45

C. 2.52

D. 4.5

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FET(Field Effect Transistors) MCQ Questions & Answers | Electrical Engineering

6. If the reverse bias on the gate of a JFET is increased, then width of the conducting channel ___________

Answer & Solution

7. If the gate of a JFET is made less negative, the width of the conducting channel ___________

Answer & Solution

8. If the cross-sectional area of the channel in n-channel JEFT increases, the drain current ___________

Answer & Solution

9. In a certain common source D-MOSFET amplifier, Vds =3.2 V r.m. and Vgs = 280 mV r.m.s. The voltage gain is ___________

Answer & Solution

10. In a certain CS JFET amplifier, RD= 1kΩ , RS= 560Ω , VDD=10V and gm= 4500 µS. If the source resistor is completely bypassed, the voltage gain is ___________

Answer & Solution

6.
If the reverse bias on the gate of a JFET is increased, then width of the conducting channel ___________

7.
If the gate of a JFET is made less negative, the width of the conducting channel ___________

8.
If the cross-sectional area of the channel in n-channel JEFT increases, the drain current ___________

9.
In a certain common source D-MOSFET amplifier, Vds =3.2 V r.m. and Vgs = 280 mV r.m.s. The voltage gain is ___________

10.
In a certain CS JFET amplifier, RD= 1kΩ , RS= 560Ω , VDD=10V and gm= 4500 µS. If the source resistor is completely bypassed, the voltage gain is ___________