2nd year physics chapter 18 important questions

Learn 2nd year physics chapter 18 Electronics Important Questions. These important 2nd year physics mcqs, short and long questions are collected by going through different past papers of all Punjab Board Pakistan.

Why are these questions important?

These Questions are taken from past papers of 2nd year physics . These questions are top repeated of in previous papers of 2nd year physics of all Punjab boards as;

      Bahawalpur Board

      D.G.Khan Board

      Faisalabad Board

      Gujranwala Board

      Lahore Board

      Multan Board

      Rawalpindi Board

Content is created and designed with intense care and diligence. Here is only the most important MCQ, short questions and long questions of 2nd year physics chapter 18 Electronics.

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You can easily download in pdf format or view 2nd year physics mcqs, short questions and long questions  online. You can easily print these files in simple way. Here you find 2nd year physics chapter 18 Electronics important mcqs, short and long questions. By Preparing these important questions, you will achieve splendid marks in Physics 12. This content is very helpful for weak students and also helpful for those students that are better at 2nd year physics exam preparation. These Questions are based on the current 2nd year physics syllabus according to Punjab Textbook Board.

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Generally, students get less time for preparation. If we talk about 2nd year physics, we need a lot of intensive time to prepare for it. 2nd Year students of face big difficulty while preparation of Physics 12 MCQs, Short & Long questions. Good News! mhbeducator.com offers you, the easiest and smartest way to prepare Physics Class 12 by which students can save their time and will able to prepare Class 2nd year physics very fast. Here your are provided 2nd year physics chapter 18 Electronics MCQs, important short and long questions. For other chapters click the link below the Post. These Questions are based on the current 2nd year physics syllabus according to Punjab Textbook Board.

About This Chapter

2nd year physics chapter 18 Electronics enables the students to learn Brief Review of p-n Junction and its Characteristics and Rectification. Students learn Specially Designed p-n Junction. Students learn Transistors, Transistor as an Amplifier and Transistor as a Switch. Students learn Operational Amplifier, OP-AMP as Inverting Amplifier, OP-AMP as Non-Inverting Amplifier and OP-AMP as a Comparator . Students learn Comparator as a Night Switch. You also learn Digital Systems, Fundamental Logic Gates, Other Logic Gates and Applications of Gates in Control Systems. This Post "2nd year physics chapter 18 important questions" covers all important mcqs, short and long questions related to important  topics of this chapter.

👉Imp MCQs - Physics  12 CH # 18

1. The Boolean expression for NAND gate is :

(A) X = A

(B) X = B

(C) X = A.B

(D) None of these

(C) X = A.B

2. Which one can be used as temperature sensor in electric circuit:

(A) Diode

(B) Photo diode

(C) Capacitor

(D) Thermistor

(D) Thermistor

3. The circuit which changes input signal at output with phase difference of 180° is called:   

(A) Switch

(B) Invertor

(C) Anti-invertor

(D) Amplifier

(B) Invertor

4. The magnitude of open loop gain of OP-amplifier is of the order of -------:
    

(A) 10⁵

(B) 10³

(C) 10⁹

(D) 10⁷

(A) 10⁵

5. The use of LDR  is in the circuit of :

(A) Rectifier

(B) Amplifier

(C) Night Switch

(D) All of these

(C) Night Switch

6. The width of central region of a transistor is :

(A) 10^-6 m

(B) 10^-5 m

(C) 10^-9 m

(D) 10^-12 m

(A) 10^-6 m

7. Which one has greater concentration of impurity:

(A) Emitter

(B) Collector

(C) Base

(D) Both A &  B

(A) Emitter

8. For forward biasing, the value of resistance ? 

(A) Zero

(B) Small

(C) Large

(D) Very Large

(B) Small

9. In full wave rectification no of diodes is : 

(A) 5

(B) 4

(C) 3

(D) 2

(B) 4

10.  The barrier potential of silicon diode at room temperature is :

(A) 0.3 V

(B) 0.7 V

(C) 0.9 V

(D) None of these

(B) 0.7 V

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👉Other Chapters (PDF) of Physics Class 12 Punjab Textbook Board

✅Chapter 12

Electrostatics

✅Chapter 13

Current Electricity

✅Chapter 14

Electromagnetism

✅Chapter 15

Electromagnetic Induction

✅Chapter 16

Alternating Current

✅Chapter 17

Physics of Solids

✅Chapter 19

Dawn of Modern Physics

✅Chapter 20

Atomic Spectra

✅Chapter 21

Nuclear Physics