Chapters
Chapter 2: Mathematical Methods
Chapter 3: Motion in a Plane
Chapter 4: Laws of Motion
Chapter 5: Gravitation
Chapter 6: Mechanical Properties of Solids
Chapter 7: Thermal Properties of Matter
Chapter 8: Sound
Chapter 9: Optics
Chapter 10: Electrostatics
Chapter 11: Electric Current Through Conductors
Chapter 12: Magnetism
Chapter 13: Electromagnetic Waves and Communication System
Chapter 14: Semiconductors
Chapter 14: Semiconductors
Balbharati solutions for Physics 11th Standard Maharashtra State Board Chapter 14 Semiconductors Exercises, Exercise [Page 256]
Choose the correct option.
Electric conduction through a semiconductor is due to:
Electrons
holes
none of these
both electrons and holes
Choose the correct option.
The energy levels of holes are:
in the valence band
in the conduction band
in the bandgap but close to valence band
in the bandgap but close to conduction band
Choose the correct option.
Current through a reverse-biased p-n junction increases abruptly at:
Breakdown voltage
0.0 V
0.3V
0.7V
Choose the correct option.
A reverse-biased diode is equivalent to:
an off switch
an on switch
a low resistance
none of the above
Choose the correct option.
The potential barrier in p-n diode is due to:
depletion of positive charges near the junction
accumulation of positive charges near the junction
depletion of negative charges near the junction
accumulation of positive and negative charges near the junction
Answer the following question.
What is the importance of the energy gap in a semiconductor?
Answer the following question.
Which element would you use as an impurity to make germanium an n-type semiconductor?
Answer the following question.
What causes a larger current through a p-n junction diode when forward biased?
Answer the following question.
On which factors does the electrical conductivity of a pure semiconductor depend at a given temperature?
Answer the following question.
Why is the conductivity of a n-type semiconductor greater than that of p-type semiconductors even when both of these have the same level of doping?
Answer in detail.
Explain how solids are classified on the basis of the band theory of solids.
Answer in detail.
Distinguish between intrinsic semiconductors and extrinsic semiconductors.
Answer in detail.
Explain the importance of the depletion region in a p-n junction diode.
Answer in detail.
Explain the I-V characteristic of a forward-biased junction diode.
Answer in detail.
Discuss the effect of external voltage on the width of depletion region of a p-n junction.
Chapter 14: Semiconductors
Balbharati solutions for Physics 11th Standard Maharashtra State Board chapter 14 - Semiconductors
Balbharati solutions for Physics 11th Standard Maharashtra State Board chapter 14 (Semiconductors) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board Physics 11th Standard Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster.
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Concepts covered in Physics 11th Standard Maharashtra State Board chapter 14 Semiconductors are Introduction to Semiconductors, Electrical Conduction in Solids, Band Theory of Solids, Intrinsic Semiconductor, A p-n Junction Diode, Semiconductor Devices, Applications of Semiconductors and P-n Junction Diode, Thermistor, Extrinsic Semiconductor, p-n Junction.
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