FET(Field Effect Transistors) MCQ Questions & Answers

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Learn FET(Field Effect Transistors) MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. FET(Field Effect Transistors) MCQ question is the important chapter for a Electrical Engineering and GATE students. Page-3 section-1

The pinch-off voltage in a JFET is analogous to ___________ voltage in a vacuum tube

A) anode B) cathode C) grid cut off D) none of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

At cut-off, the JFET channel is ___________

A) at its widest point B) completely closed by the depletion region C) extremely narrow D) reverse baised

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

For VGS = 0 V, the drain current becomes constant when VDS exceeds

A) cut off B) VDD C) VP D) o V

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

When drain voltage equals the pinch-off-voltage, then drain current ___________ with the increase in drain voltage

A) decreases B) increases C) remains constant D) none of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

A n-channel D-MOSFET with a positive VGS is operating in ___________

A) the depletion-mode B) the enhancement-mode C) cut off D) saturation

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

___________ has the lowest noise-level

A) triode B) ordinary trnsistor C) tetrode D) JFET

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which of the following devices has the highest input impedance?

A) JFET B) MOSFET C) Crystal diode D) ordinary transistor

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The transconductance of a JFET ranges from ___________

A) 100 to 500 mA/V B) 500 to 1000 mA/V C) 0.5 to 30 mA/V D) above 1000 mA/V

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In a p-channel JFET, the charge carriers are ___________

A) electrons B) holes C) both electrons and holes D) none of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The pinch-off voltage of a JFET is about ___________

A) 5 V B) 0.6 V C) 15 V D) 25 V

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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