Semiconductor Materials, Intrinsic, Extrinsic, p-type, n-type Quiz 2

Diagram-Based Semiconductor MCQ Worksheet (CBSE / NEET / JEE)

This worksheet focuses on band diagrams and p-n junction concepts.

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Q1. Identify the type of semiconductor shown in the band diagram:

A) n-type
B) p-type
C) Intrinsic
D) Insulator

Q2. The following diagram represents:

A) Depletion region formation
B) Forward bias
C) Reverse bias
D) Intrinsic conduction

Q3. In this band diagram, impurity level is near conduction band. Identify type:

A) Intrinsic
B) p-type
C) n-type
D) Insulator

Q4. Direction of electric field in depletion region is:

A) n → p
B) p → n
C) No field
D) Random

Q5. The diagram shows forward bias. What happens?

A) Depletion region widens
B) Depletion region narrows
C) No change
D) Breakdown

Q6. In this diagram, holes move toward:

A) p-side
B) n-side
C) Both sides
D) No movement

Q7. Identify this band structure:

A) Conductor
B) Semiconductor
C) Insulator
D) Superconductor

Q8. Fermi level near valence band indicates:

A) n-type
B) p-type
C) Intrinsic
D) Metal

Q9. Reverse bias condition is shown when:

A) Barrier decreases
B) Barrier increases
C) No change
D) Conduction increases

Q10. The depletion region contains:

A) Free electrons
B) Free holes
C) Ions only
D) Neutrons

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Answer Key

1. C
2. A
3. C
4. A
5. B
6. B
7. C
8. B
9. B
10. C