JEE Main Physics: Electronic Devices — Chapter Test 1

JEE Main • Physics • Electronic Devices • Chapter Test

EasyFREE

Questions

20 min

Duration

Marks (1 each)

Negative marking

Original practice questions with full solutions by ExamPortal.

Instructions

• Read each question carefully and pick the correct answer.
• You can mark questions for review and come back to them.
• Answers are saved automatically.
• The test is submitted automatically when time runs out.

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SYLLABUS & QUESTION BLUEPRINT

Sample Practice Questions

Preview 5 sample questions from this 15-question test. Test your knowledge below or take the full exam in timed CBT mode.

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Question 1 of 15

Pure silicon at 0 K behaves as

a conductor

an insulator

a superconductor

a semiconductor with many free electrons

View Correct Answer & Step-by-Step Solution

Correct Option:(B)an insulator

Detailed explanation is available inside the official test attempt review.

Question 2 of 15

Silicon doped with phosphorus becomes

p-type

n-type

intrinsic

an insulator

View Correct Answer & Step-by-Step Solution

Correct Option:(B)n-type

Detailed explanation is available inside the official test attempt review.

Question 3 of 15

Silicon doped with boron becomes

p-type

n-type

intrinsic

a metal

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Correct Option:(A)p-type

Detailed explanation is available inside the official test attempt review.

Question 4 of 15

The majority charge carriers in a p-type semiconductor are

electrons

holes

protons

ions

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Correct Option:(B)holes

Detailed explanation is available inside the official test attempt review.

Question 5 of 15

Forward biasing a p-n junction

widens the depletion layer

narrows the depletion layer

does not change it

destroys the junction

View Correct Answer & Step-by-Step Solution

Correct Option:(B)narrows the depletion layer

Detailed explanation is available inside the official test attempt review.

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Frequently asked questions

How many questions are there in JEE Main Physics: Electronic Devices — Chapter Test 1?

There are 15 questions to answer in 20 min. Each correct answer gives 1 mark, for a total of 15 marks.

Is there negative marking?

No. Wrong answers do not lose marks, so attempt every question.

Is this mock test free?

Yes, it is completely free. Just log in with your email to start.

What does this test cover?

It covers the chapter "Electronic Devices" of JEE Main Physics. All questions are original, with a full solution for each.

Will I see my result and the solutions?

Yes. Right after you submit you get your score, accuracy, rank and percentile, and you can review every question with the correct answer and a step-by-step explanation.

Can I take this test again?

Yes, you can retake it as many times as you like and compare your scores.