Electronic Devices Circuits Diffusion Online Exam Quiz
Electronic Devices Circuits Diffusion GK Quiz. Question and Answers related to Electronic Devices Circuits Diffusion. MCQ (Multiple Choice Questions with answers about Electronic Devices Circuits Diffusion
Calculate the diffusion constant for the electrons when the mobility of the electrons is 325cm2/V-s and temperature is 300K?
Options
A : 0.85 m2/s
B : 0.084 m2/s
C : 0.58 m2/s
D : 0.95 m2/s
Calculate the diffusion constant for the holes when the mobility of the holes is 400cm2/V-s and temperature is 300K?
Options
A : 1.035m m2/s
B : 0.035m m2/s
C : 1.5m m2/s
D : 1.9m m2/s
Calculate the diffusion current density when the concentration of electron varies from the 1*1018 to 7*1017 cm-3 over a distance of 0.10 cm.D=225cm2/s
Options
A : 100 A/cm2
B : 108 A/cm2
C : 0.01A/cm2
D : None
What is the SI unit of electron diffusion constant?
Options
A : cm2/s
B : m2/s
C : m/s
D : none
In diffusion, the particles flow from a region of _______ to region of ___________
Options
A : High, low
B : Low , high
C : High , medium
D : Low, medium
Which is the correct formula for the Jp?
Options
A : Jp=qDdp/dx
B : Jp=pDdn/dx
C : Jp=-qDdp/dx
D : None
What is the direction of the electron diffusion current density relative to the electron flux?
Options
A : Same direction
B : Opposite to each other
C : Perpendicular to each other
D : At 270 degrees to each other
Which of the following term isn’t a part of the total current density in a semiconductor?
Options
A : Temperature
B : µ
C : e
D : E
Which of the following parameter describes the best movement of the electrons inside a semiconductor?
Options
A : Velocity gradient
B : Diffusion
C : Mobility
D : Density gradient
What does dn/dx represent?
Options
A : Velocity gradient
B : Volume gradient
C : Density gradient
D : None
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