Physics Class 12 Chapter 14 Important Questions

Learn Physics Class 12 Chapter 14 Important Questions. These important physics Class 12 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 Physics Class 12. These questions are top repeated of in previous papers of Physics Class 12 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 Physics Class 12 chapter 14 Electromagnetism.

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You can easily download in pdf format or view Physics Class 12 mcqs, short questions and long questions  online. You can easily print these files in simple way. Here you find Physics Class 12 Chapter 14 Electromagnetism important mcqs, short and long questions. By Preparing these important questions, you will achieve splendid marks in Physics Class 12. This content is very helpful for weak students and also helpful for those students that are better at Physics Class 12 exam preparation. These Questions are based on the current Physics Class 12 syllabus according to Punjab Textbook Board.

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About This Chapter

Physics Class 12 Chapter 13 current electricity enables the students to learn  Magnetic Field Due to Current in a Long Straight Wire, Force on a Current Carrying Conductor in a Uniform Magnetic Field and Magnetic Flux and Flux Density. Students learn Amperes Law and Determination of Flux Density B. Students learn Force on a Moving Charge in a Magnetic Field and Motion of Charged Particle in an Electric and Magnetic Field. Students learn Determination of e/m of an Electron. Students learn Cathode Ray Oscilloscope, Galvanometer and AVO Multimeter. At the last, you learn about Torque on a Current Carrying Coil. This Post "Physics Class 12 Chapter 14 Important Questions" covers all important mcqs, short and long questions related to important  topics of this chapter.

👉Imp MCQs - Physics Class 12 CH # 14

1. Two parallel straight wires carrying current in same direction will:

(A) Attract each other

(B) Repel each other

(C) No effect

(D) Weak repulsion

(B) Repel each other

2. The SI unit of magnetic induction tesla is equal to :

(A) NA^-1m^-1

(B) NA^-2m^-1

(C) NAm^-1

(D) NAm

(A) NA^-1m^-1

3. If the number of turns become double but length remain same, then magnetic field in the solenoid become:   

(A) Zero

(B) Double

(C) Half

(D) Remains same

(D) Remains same

4. The value of permeability of free space is :
    

(A) 4 × 𝟏𝟎^-7 Wb𝑨^-1𝒎^-1

(B) 4 × 𝟏𝟎^-7 Wb𝑨^-1𝒎

(C) 4 × 𝟏𝟎^-7 Wb𝑨𝒎^-1

(D) 4 × 𝟏𝟎^-7 Wb𝑨^-2𝒎^-2

(A) 4 × 𝟏𝟎^-7 Wb𝑨^-1𝒎^-1

5. A magnetic field acts on a charged particle so as to change its:

(A) Direction

(B) Energy 

(C) Both

(D) None

(A) Direction

6. The sum of electric and magnetic force is called:

(A) Lorentz force

(B) Centripetal force

(C) Centrifugal force

(D) None of these

(A) Lorentz force

7. The value of e/m is smallest for:

(A) Proton

(B) Electron

(C) Beta-particle

(D) Both A & C

(A) Proton

8. The brightness of spot in CRO screen is controlled by: 

(A) Deflection plates

(B) Grid

(C) Anode

(D) None of these

(B) Grid

9. The function of three anodes in a CRO  is to : 

(A) Control Brightness

(B) Focus Electrons

(C) Accelerate Electrons

(D) Focus and Accelerate Electrons

(D) Focus and Accelerate Electrons

10. Sensitivity of Galvanometer can be increased by decreasing?

(A) Torsional couple

(B) Area of coil

(C) Decreasing no. of turns

(D) Both A & B

(A) Torsional couple

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

✅Chapter 12

Electrostatics

✅Chapter 13

Current Electricity

✅Chapter 15

Electromagnetic Induction

✅Chapter 16

Alternating Current

✅Chapter 17

Physics of Solids

✅Chapter 18

Electronics

✅Chapter 19

Dawn of Modern Physics

✅Chapter 20

Atomic Spectra

✅Chapter 21

Nuclear Physics