Electronic Devices and Circuits Questions and Answers – MOSFETs Current-Voltage Characteristics

This set of Electronic Devices and Circuits Multiple Choice Questions & Answers (MCQs) focuses on “MOSFETs Current-Voltage Characteristics”.

1. If a MOSFET is to be used in the making of an amplifier then it must work in
a) Cut-off region
b) Triode region
c) Saturation region
d) Both cut-off and triode region can be used
View Answer

2. For MOSFET is to be used as a switch then it must operate in
a) Cut-off region
b) Triode region
c) Saturation region
d) Both cut-off and triode region can be used
View Answer

3. Determine the conditions in which the MOSFET is operating in the triode region from the following figure.
i. V_GD > V_t (Threshold voltage)
ii. V_DS > V_OV
iii. I_D ∝ (V_OV – 0.5V_DS)V_DS

a) i, ii, and iii are correct
b) i and iii are correct
c) i and ii are correct
d) ii and iii are correct
View Answer

4. Determine the conditions in which the MOSFET is operating in the saturation region.
i. V_GD > V_t (Threshold voltage)
ii. V_DS > V_OV
iii. I_D ∝ (V_OV)²

a) i, ii, and iii are correct
b) i and iii are correct
c) i and ii are correct
d) ii and iii are correct
View Answer

5. In the saturation region of the MOSFET the saturation current is?
a) Independent of the voltage difference between the source and the drain
b) Depends directly on the voltage difference between the source and the drain
c) Depends directly on the overdriving voltage
d) Depends directly on the voltage supplied to the gate terminal
View Answer

6. An n-channel MOSFET operating with V_OV=0.5V exhibits a linear resistance = 1 kΩ when V_DS is very small. What is the value of the device transconductance parameter k_n?
a) 2 mA/V²
b) 20 mA/V²
c) 0.2 A/V²
d) 2 A/V²
View Answer

7. An NMOS transistor is operating at the edge of saturation with an overdrive voltage V_OV and a drain current I_D. If is V_OV is doubled, and we must maintain operation at the edge of saturation, what value of drain current results?
a) 0.25I_D
b) 0.5I_D
c) 2I_D
d) 4I_D
View Answer

8. Which of the following is true for the triode region?

a) V_DG > V_tp
b) V_SD < V_OV
c) I_D ∝ V_OV
d) None of the mentioned
View Answer

9. Which of the following is true for the saturation region?

a) V_DG ≤ |V_tp|
b) V_SD ≤| V_OV|
c) V_DG < |V_tp|
d) V_SD <| V_OV|
View Answer

10. The current i_D is?

a) Depends linearly on V_OV in the saturation region
b) Depends on the square of V_OV in the saturation region
c) Depends inversely on V_OV in the triode region
d) None of the mentioned
View Answer

Sanfoundry Global Education & Learning Series – Electronic Devices and Circuits.

To practice all areas of Electronic Devices and Circuits, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]