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Important Questions for Class 12 Physics Chapter 4 Moving Charges and Magnetism - PDF Download

Class 12

The Class 12 Physics Chapter 4 important questions PDF is highly beneficial for the students who are targeting good marks in their board exams. The textbook prescribed by NCERT for Class 12 Physics consists of many important topics. To improve the grades and to increase their knowledge in the subject students are suggested to download chapter wise notes available on our website for detailed explanation along with exercise problems. 

For thorough preparation, students should start their preparation with Chapter 4 Physics Class 12 important questions. The important questions of Chapter 4 Moving Charges and Magnetism Physics Class 12 are prepared with deep insight into the syllabus according to CBSE board exams, previous year’s questions. The Chapter 4 Physics Class 12 important questions included all the textbook exercises prepared by experts and the master teachers.

Chapter 4 Moving Charges and Magnetism has good marks assigned in the Board exams. The Moving charges and Magnetism chp 4 include many interesting topics like magnetic forces, magnetic field, the direction of magnetic force in the current-carrying coil with different cases, etc. These concepts are not only important in your board exam but also for students who are aiming for IIT-JEE, NEET exams as well.

Students must start with Class 12 Physics Chapter 4 important questions after revising the chapter. Let us have a look at some main points of Chapter 4:

  • The chapter consists of different derivations like ampere circuital law, the force between two parallel current-carrying wires, etc.

  • Chapter 4 mainly focused on explaining the idea that electric and magnetic fields are correlated to one another. Since the beginning it was assumed that electric fields and magnetic fields are independent of each other.

  • We come across concepts such as magnetic force, Lorentz force which is a piece of evidence about electric and magnetic fields which are related to each other.

  • We study cyclotrons, solenoids, moving coil galvanometers, etc.

These are a few key points to be remembered while jumping into the practice of Chapter 4 Physics Class 12 important questions.

Important Topics & Sub-topics of Chapter 4 Moving Charges and Magnetism Class 12 Physics

Here, on this website you can get important questions and its solution in pdf format for class 12 chp 4 Moving Charges and Magnetism, which is all about charges and magnetism. Please note that the specifics may vary depending on your curriculum and textbook, the table is being created based upon a sample question paper discussed internally in the coaching center. 

In Class 12 physics, the chapter on "Moving Charges and Magnetism " is an important one. Below are the important topics and subtopics within this chapter.

Ampere's Circuital Law and Its Applications

Introduction to Magnetism

  • Historical background of magnetism

  • Magnetic and non magnetic materials

Magnetic Force on a Moving Charges

  • Biot-Savart Law

  • Ampere’s Circuital Law

Magnetic Field Due to a Current Element, Biot-Savart Law 

  • Expression for magnetic field due to a small current element

  • Calculation of magnetic field around a straight current carrying wire

Magnetic Field Due to a Current in a Circular loop

  • Magnetic Field at the center and on the axis of a circular current loop

Force on a current carrying Conductor in a Magnetic Field

  • Magnetic Force on a straight current carrying conductor placed in a magnetic field

  • The Concept of Lorentz Force 

Torque On a Current Loop in a Magnetic Field

  • Magnetic Torque on a current loop

  • Expression For torque and conditions for equilibrium

Magnetic Dipole

  • Magnetic Dipole moment

  • Magnetic field on the axial and equatorial line of a magnetic dipole

The Moving coil Galvanometer

  • Working principle of a galvanometer

  • Conversion to ammeter and voltmeter

Ampere's Circuital Law and Its Applications

  • Statement of Ampere's Circuital law.

  • Applications to calculate magnetic field in various symmetric configurations.

The Solenoid and the Toroid

  • Magnetic field inside a long solenoid.

  • Magnetic field inside a toroid.

Force Between Two Parallel Currents

  • Magnetic force between two parallel current-carrying conductors.

The Ampere-Maxwell Law and Electromagnetic Waves

  • Statement of Ampere-Maxwell law.

  • Introduction to electromagnetic waves.

These are the main topics and subtopics covered in Chapter 4 of Class 12 Physics, "Moving Charges and Magnetism." Studying these thoroughly will provide a strong foundation in understanding magnetism and its applications in the field of physics.

Class 12 Physics Chapter 4 Moving Charges and Magnetism Weightage

Tips to Solve Class 12 Physics Chapter 4 Moving Charges and Magnetism

Solving problems in Class 12 Physics Chapter 4, "Moving Charges and Magnetism," can be challenging, but with the right approach, you can excel. Here are some tips to help you tackle this chapter effectively:

Understand the Concepts: Before attempting problems, make sure you have a solid understanding of the underlying concepts. Familiarize yourself with the definitions, laws, and equations related to magnetism and moving charges.

Read the Textbook: Start by thoroughly reading your class textbook. Pay close attention to the explanations, examples, and illustrations provided. This will help you grasp the fundamental concepts.

Practice Regularly: Physics is a subject that requires practice. Solve a variety of problems related to each subtopic in the chapter. Start with basic problems and gradually move to more complex ones.

Organize Your Notes: Keep well-organized notes with all the important formulas, concepts, and key points. Having these notes handy will help you revise quickly and solve problems effectively.

Use Diagrams: Visualize problems by drawing diagrams when necessary. This can help you understand the scenario and how to apply the relevant equations.

Work Step by Step: Break down problems into smaller steps and solve them systematically. This helps in avoiding errors and makes complex problems more manageable.

Refer to Solved Examples: Your textbook likely contains solved examples. Study these to understand problem-solving techniques and strategies.

Practice Time Management: When preparing for exams, practice solving problems under timed conditions to improve your speed and efficiency.

Previous Years' Question Papers: Solve previous years' question papers to get a sense of the types of questions that may be asked in your exams. This will also help you identify important topics.

Stay Consistent: Consistency is key. Dedicate regular study sessions to this chapter to reinforce your understanding.

Test Yourself: Periodically test yourself with practice quizzes or self-assessment tests to gauge your progress.

Benefits of Solving Class 12 Physics Chapter 4 Important Questions with Answers 

Solving Class 12 Physics Chapter 4 important questions with answers offers several benefits to students preparing for their exams and aiming to understand the topic thoroughly. Here are the key advantages:

Reinforcement of Key Concepts: Important questions are designed to cover fundamental concepts and principles from the chapter. Solving them helps reinforce your understanding of these key ideas.

Exam Preparation: These questions often reflect the types of problems and concepts that are likely to appear in your exams. Practicing them familiarizes you with the exam format and question patterns.

Improved Problem-Solving Skills: Working through important questions enhances your problem-solving skills. You learn how to approach different types of problems and develop effective strategies.

Time Management: By solving a variety of important questions, you improve your time management skills. This is crucial for completing your exam within the allocated time frame.

Confidence Boost: As you successfully solve important questions, your confidence in your ability to tackle similar problems in the exam grows. Confidence can be a significant factor in performing well on the day of the exam.

Identification of Weak Areas: While solving important questions, you may identify specific topics or concepts that you find challenging. This allows you to focus your revision on areas where you need improvement.

Application of Formulas and Laws: Important questions often require you to apply relevant formulas, laws, and principles. This helps you become more proficient in using these mathematical and scientific tools.

Frequently Asked Question

Question 1 : What are the Different Applications of Ampere's Circuital Law, according to Chapter 4 of Class 12 Physics?

Answer : Different applications of ampere’s circuital law are:

  • Long current-carrying induced magnetism

  • Current carrying cylinder creating a magnetic field

  • Current carrying hollow cylinder creating magnetic fields



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