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Balbharati solutions for Physics 12th Standard HSC Maharashtra State Board chapter 16 - Semiconductor Devices [Latest edition]

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Physics 12th Standard HSC Maharashtra State Board - Shaalaa.com

Chapter 16: Semiconductor Devices

Exercises
Exercises [Pages 363 - 364]

Balbharati solutions for Physics 12th Standard HSC Maharashtra State Board Chapter 16 Semiconductor Devices Exercises [Pages 363 - 364]

Exercises | Q 1.1 | Page 363

Choose the correct option:

In a BJT, the largest current flow occurs

  • in the emitter

  • in the collector

  • in the base

  • through CB junction

Exercises | Q 1.2 | Page 363

Choose the correct option:

A Series resistance is connected in the Zener diode circuit to

  • Properly reverse bias the Zener

  • Protect the Zener

  • properly forward bias the Zener

  • Protect the load resistance

Exercises | Q 1.3 | Page 363

Choose the correct option:

A LED emits visible light when its

  • junction is reverse biased

  • depletion region widens

  • holes and electrons recombine

  • junction becomes hot

Exercises | Q 1.4 | Page 363

Choose the correct option.

Solar cell operates on the principle of:

  • diffusion

  • recombination

  • photovoltaic action

  • carrier flow

Exercises | Q 1.5 | Page 363

Choose the correct option:

A logic gate is an electronic circuit which:

  • makes logical decisions

  • allows electron flow only in one direction

  • works using binary algebra

  • alternates between 0 and 1 value

Exercises | Q 2.1 | Page 363

Answer in brief.

Why is the base of a transistor made thin and is lightly doped?
Exercises | Q 2.2 | Page 364

Answer in brief.

How is a Zener diode different than an ordinary diode?

Exercises | Q 2.3 | Page 364

Answer in brief.

On which factors does the wavelength of light emitted by a LED depend?

Exercises | Q 2.4 | Page 364

Answer in brief.

Why should a photodiode be operated in reverse biased mode?

Exercises | Q 2.5 | Page 364

Answer in brief.

State the principle of solar cells.

Exercises | Q 2.5 | Page 364

Answer in brief.

State the uses of the solar cell.

Exercises | Q 3 | Page 364

Draw the circuit diagram of a half-wave rectifier. Explain its working. What is the frequency of ripple in its output?

Exercises | Q 4 | Page 364

Why do we need filters in a power supply?

Exercises | Q 5 | Page 364

Draw a neat diagram of a full-wave rectifier and explain it’s working.

Exercises | Q 6 | Page 364

Explain how a Zener diode maintains a constant voltage across a load.

Exercises | Q 7 | Page 364

Explain the forward and the reverse characteristic of a Zener diode.

Exercises | Q 8 | Page 364

Explain the working of a LED.

Exercises | Q 9 | Page 364

Explain the construction and working of the solar cell.

Exercises | Q 10 | Page 364

Explain the principle of operation of a photodiode.

Exercises | Q 11.1 | Page 364

What is a logic gate?

Exercises | Q 11.2 | Page 364

What do you mean by a truth table?

Exercises | Q 11.3 | Page 364

What do you mean by a Boolean expression?

Exercises | Q 12.1 | Page 364

What is a logic gate?

Exercises | Q 12.2 | Page 364

Write the truth table and Boolean expression for an AND gate.

Exercises | Q 13.1 | Page 364

What are the uses of logic gates?

Exercises | Q 13.2 | Page 364

Why is a NOT gate known as an inverter?

Exercises | Q 14.1 | Page 364

Write the Boolean expressions for an OR gate.

Exercises | Q 14.2 | Page 364

Write the truth table and Boolean expression for an AND gate.

Exercises | Q 14.3 | Page 364

Write the Boolean expressions for a NAND gate.

Exercises | Q 15 | Page 364

Why are the emitter, the base, and the collector of a BJT doped differently?

Exercises | Q 16 | Page 364

Which method of biasing is used for operating a transistor as an amplifier?

Exercises | Q 17 | Page 364

Define α and β. Derive the relation between then.

Exercises | Q 18 | Page 364

The common-base DC current gain of a transistor is 0.967. If the emitter current is 10mA. What is the value of base current?

Exercises | Q 19 | Page 364

In a common-base connection, a certain transistor has an emitter current of 10mA and a collector current of 9.8 mA. Calculate the value of the base current.

Exercises | Q 20 | Page 364

In a common-base connection, the emitter current is 6.28mA and the collector current is 6.20 mA. Determine the common-base DC current gain.

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Chapter 16: Semiconductor Devices

Exercises
Physics 12th Standard HSC Maharashtra State Board - Shaalaa.com

Balbharati solutions for Physics 12th Standard HSC Maharashtra State Board chapter 16 - Semiconductor Devices

Balbharati solutions for Physics 12th Standard HSC Maharashtra State Board chapter 16 (Semiconductor Devices) 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 12th Standard HSC Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Balbharati textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Physics 12th Standard HSC Maharashtra State Board chapter 16 Semiconductor Devices are Semiconductor Devices, p-n Junction Diode as a Rectifier, Special Purpose Junction Diodes, Bipolar Junction Transistor (BJT), Logic Gates.

Using Balbharati 12th Board Exam solutions Semiconductor Devices exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Balbharati Solutions are important questions that can be asked in the final exam. Maximum students of Maharashtra State Board 12th Board Exam prefer Balbharati Textbook Solutions to score more in exam.

Get the free view of chapter 16 Semiconductor Devices 12th Board Exam extra questions for Physics 12th Standard HSC Maharashtra State Board and can use Shaalaa.com to keep it handy for your exam preparation

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