Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

10 Questions

0 Views

Semiconductor MCQ 2

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is a positive hole in the context of semiconductors?

A type of electrical component

A type of dopant

A gap left behind when an electron breaks free (correct)

An extra electron

What is the main difference between intrinsic and extrinsic conduction in semiconductors?

Intrinsic conduction has higher conductivity than extrinsic conduction

Intrinsic conduction is affected by temperature, while extrinsic conduction is not

Intrinsic conduction involves electrons, while extrinsic conduction involves holes

Intrinsic conduction occurs in pure semiconductors, while extrinsic conduction occurs in doped semiconductors (correct)

What is the effect of doping a semiconductor with Phosphorus?

It increases the number of positive holes available for conduction

It decreases the number of free electrons available for conduction

It increases the number of free electrons available for conduction (correct)

It has no effect on the number of free electrons or holes

What type of semiconductor results from doping with Boron?

P-type Signup and view all the answers

What is a thermistor in the context of semiconductors?

An electrical component whose resistance decreases rapidly with increasing temperature Signup and view all the answers

What is the depletion layer in a p-n junction?

A region at both sides of a P-N junction that contains no free majority charge carriers Signup and view all the answers

What is the junction voltage in a p-n junction?

Answer (A and B) Signup and view all the answers

What happens to a diode connected in forward bias?

It will allow current to flow once the junction voltage is exceeded Signup and view all the answers

What happens to a diode connected in reverse bias?

It will not allow current flow and will act as an insulator Signup and view all the answers

What is the role of a diode in a rectifier?

To convert a.c. to d.c. Signup and view all the answers