This set of Analog Electronic Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Biasing of JFET and MOSFET”.
a) 5 mA
c) 0.125 A
a) RD < 6kΩ
b) RD > 6kΩ
c) RD > 4kΩ
d) RD < 4kΩ
3. Which of the following statements are true?
P: JFET is biased to operate it in active region Q: MOSFET is biased to operate it in saturation region
a) Both P and Q are correct
b) P is correct and Q is incorrect
c) P is incorrect and Q is correct
d) Both P and Q are incorrect
d) Any value of voltage less than 12 V
a) 20V, 25mA
b) 13V, 22mA
c) 12.72V, 23.61mA
d) 20V, 23.61mA
6. To bias a e-MOSFET ___________
a) we can use either gate bias or a voltage divider bias circuit
b) we can use either gate bias or a self bias circuit
c) we can use either self bias or a voltage divider bias circuit
d) we can use any type of bias circuit
a) -3.83V, 0.766mA
b) -2.345V, 0.469mA
c) 3.83V, 0.469mA
d) 2.3V, 0.7mA
8. For a MOSFET, the pinch-off voltage is -3V. Gate to source voltage is 20V. W/L ratio is 5. Process transconductance parameter is 40μA/V2. Find drain to source current in saturation.
a) 0.10 mA
c) – 0.05mA
d) – 50A
10. Which of the following statements are true?
A: In a self bias circuit, the current IDS is not stable. B: Source capacitance, CS, parallel to RS, reduces stability.
a) Both statements are correct and B is the correct reasoning
b) Both statements are correct but B is not the correct reason for it
c) Statement A is correct while statement B is wrong
d) Both statements are incorrect