Explore topic-wise MCQs in Electronic Devices and Circuits Questions and Answers.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices and Circuits Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

Calculate the diffusion constant for the electrons when the mobility of the electrons is 325cm2/V-s and temperature is 300K?

A. a)0.85 m2/s
B. b)0.084 m2/s
C. c)0.58 m2/s
D. d)0.95 m2/s
Answer» D. d)0.95 m2/s
Discussion
2.

Calculate the diffusion constant for the holes when the mobility of the holes is 400cm2/V-s and temperature is 300K?

A. a)1.035m m2/s
B. b)0.035m m2/s
C. c)1.5m m2/s
D. d)1.9m m2/s
Answer» B. b)0.035m m2/s
Discussion
3.

Which of the following term isn’t a part of the total current density in a semiconductor?

A. a)Temperature
B. b)µ
C. c)e
D. d)E
Answer» B. b)µ
Discussion
4.

In diffusion, the particles flow from a region of _______ to region of ___________

A. a)High, low
B. b)Low , high
C. c)High , medium
D. d)Low, medium
Answer» B. b)Low , high
Discussion
5.

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

A. a)100 A/cm2
B. b)108 A/cm2
C. c)0.01A/cm2
D. d)None
Answer» C. c)0.01A/cm2
Discussion