Electronic Devices [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 93 - 97 of 161

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Question 93

Electronic Devices
MOSFET, LED, Photo Diode and Solar Cell

Appeared in Year: 2019

Question

MCQ▾

Consider a long-channel MOSFET with a channel length and width . The device parameters are acceptor concentration , electron mobility , oxide capacitance/area , threshold voltage . The drain saturation current for a gate voltage of is ________ (rounded off to two decimal places) . (Carry One Mark Each)

Choices

Choice (4)Response

a.

23.5162 mA

b.

20.5162 mA

c.

25.5162 mA

d.

None of the above

Question 94

Electronic Devices
Diffusion Current, Drift Current, Mobility and Resistivity

Appeared in Year: 2010

Question

MCQ▾

At room temperature, a value for the mobility of electrons in the inversion layer of a silicon n-channel MOSFET is.

Choices

Choice (4)Response

a.

b.

c.

d.

Passage

The silicon sample with unit cross-sectional area shown below is in thermal equilibrium. The following information is given: , electronic charge , thermal voltage and electron mobility .

The Silicon Sample with Unit Cross-Sectional Area

Question 95 (1 of 2 Based on Passage)

Electronic Devices
Diffusion Current, Drift Current, Mobility and Resistivity

Appeared in Year: 2010

Question

MCQ▾

The magnitude of the electric field at is

Choices

Choice (4)Response

a.

b.

c.

d.

Question 96 (2 of 2 Based on Passage)

Electronic Devices
Diffusion Current, Drift Current, Mobility and Resistivity

Appeared in Year: 2010

Question

MCQ▾

The magnitude of the electron of the electron drift current density at x = 0.5 μm is

Choices

Choice (4)Response

a.

b.

c.

d.

Question 97

Electronic Devices
P-N Junction,Zener Diode,BJT,MOS Capacitor

Appeared in Year: 2019

Question

MCQ▾

Which one of the following options describes correctly the equilibrium band diagram at T = 300 K of a Silicon configuration shown in the figure? (Carry One Mark Each)

Describes Correctly the Equilibrium Band Diagram
pn

Choices

Choice (4)Response

a.

Describes Correctly the Equilibrium Band Diagram

b.

Describes Correctly the Equilibrium Band Diagram

c.

Describes Correctly the Equilibrium Band Diagram

d.

Describes Correctly the Equilibrium Band Diagram

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