Explore topic-wise MCQs in Electronic Devices and Circuits.

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

1.

Calculate Vo when ppo=1016cm-3, pno=104cm-3 and Vt=25mV.

A. t69V
B. t6.9V
C. t0.69V
D. t0.069V
Answer» D. t0.069V
Discussion
2.

Is Vo depends only on the equilibrium concentrations. Is it true or false?

A. tTrue
B. tFalse
Answer» B. tFalse
Discussion
3.

Calculate the value of Dp when p=400cm/s and VT=25mV.

A. t1
B. t0.01
C. t0.1
D. t10
Answer» D. t10
Discussion
4.

Which of the following equations represent the correct expression for the band diagram of the p-n junction? (E1=difference between the fermi level of material and conduction band of n material and E2=difference between the conduction band of n material and fermi level of n material)

A. tE<sub>cn</sub> E <sub>f</sub> = (1/2)*E<sub>G</sub> E<sub>1</sub>
B. tE<sub>cn</sub> E <sub>f</sub> = (1/2)*E<sub>G</sub> E<sub>2</sub>
C. tE<sub>f</sub> E<sub>cp</sub> = (1/2)*E<sub>G</sub> E<sub>1</sub>
D. tE<sub>cn</sub> E<sub>f</sub> = (1/2)*E<sub>G</sub> + E<sub>1</sub>
Answer» B. tE<sub>cn</sub> E <sub>f</sub> = (1/2)*E<sub>G</sub> E<sub>2</sub>
Discussion
5.

The conduction band edge in the p material is not at the same level to that of conduction band edge in the n material. Is it true or false?

A. tTrue
B. tFalse
Answer» B. tFalse
Discussion