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# HC Verma Solutions Class 12 Chapter 34 - Magnetic Field

Last updated date: 05th Aug 2024
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## Summary of HC Verma Solutions Part 2 Chapter 34: Magnetic Field

This chapter brings a very significant topic- Magnetism. It talks about the theories of magnetic fields and their various properties. It also shows the relationship between electric and magnetic fields, and various motions are explained. Lastly, the chapter explains Torque on a current loop.

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Dive into the chapter: Begin by carefully reading the chapter, paying close attention to the fundamental concepts and terminology. Establishing a strong foundation will set you up for success in solving the exercises.

Step-by-step approach: Instead of simply memorizing the solutions, take a step-by-step approach. Understand the logic behind each step and grasp how the solutions are derived. This will deepen your understanding of the underlying principles.

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## FAQs on HC Verma Solutions Class 12 Chapter 34 - Magnetic Field

1. Is it enough to study HC Verma Class 12 Physics Part-2 for IIT JEE preparation of Magnetic Field?

Yes, HC Verma Physics is good enough for preparing the numerical problems of the topic Magnetic Field for IIT JEE. HC Verma Class 12 Physics is one of the most recommended books for IIT JEE preparation. The multiple-choice questions from Magnetic Field, in HC Verma Class 12 Physics Part-2 are of IIT JEE difficulty level, and of great help for the exam preparation. Yet, it is not enough to study HC Verma for the theory part of the topic.

2. What is a Magnetic Field?

A magnetic field represents the magnetic influence of moving electric charges on one another. It is a vector quantity and can be observed in the vicinity of any magnet or a moving electric charge. For example, every moving electron creates a magnetic field around itself. The magnetic field intensity of a moving electron is determined by its charge, acceleration, and velocity.

3. What are the important topics covered in the HC Verma Class 12 Chapter of Magnetic Field?

Some important topics covered in the HC Verma Class 12 Chapter of Magnetic Field are as follows.

• The magnetic field intensity due to the magnetic dipole of a bar magnet.

• The magnetic dipole moment of a current loop.

• Torque on a bar magnet as a magnetic dipole, within a uniform magnetic field.

• Properties of magnetic substances: Para-magnetic, diamagnetic, and ferromagnetic.

4. Can I get the HC Verma Class 12 Physics Part-2 Solutions for Chapter 34- Magnetic Field online?

Yes, you can get the HC Verma Class 12 Physics Part-2 Solutions for Chapter 34- Magnetic Field on Vedantu. These HC Verma Physics Solutions for the topic ‘Magnetic Field’ are prepared by our highly experienced faculty. Each question is solved and explained in a stepwise manner to facilitate an easy understanding of all students. When you go through these HC Verma Solutions, you will be able to analyze every numerical type question and the multiple-choice question effectively. You can download and refer to these HC Verma Solutions for free from Vedantu mobile application as well. For more assistance on your doubts on Magnetic Field, you can sign up for the live classes at Vedantu.

5. How to generate a magnetic field?

The magnetic field can be generated by a moving charge or electric currents in addition to the magnet. We all know that matter is made up of atoms, which are very little things. Protons and neutrons make up an atom's nucleus, which is surrounded by electrons. The spinning and circling of protons and neutrons, or the nucleus of an atom, creates the magnetic field. The orbit and spin directions determine the direction of the magnetic field. The magnetic field is represented mathematically by the letter 'B.' Tesla is the name of the unit (T).

6. How to measure magnetic fields?

Because a magnetic field is a vector quantity, we must measure both its strength and direction to describe it.

It's simple to determine the direction. A magnetic compass that aligns with the field can be used. Since the 11th century, magnetic compasses have been used for navigation (using the Earth's magnetic field).

Surprisingly, determining the strength is much more difficult. Only in the nineteenth century did practical magnetometers become available. The majority of these magnetometers rely on the force that an electron experiences as it passes through a magnetic field.

7. What is Earth’s magnetic field?

Sir William Gilbert was the first to demonstrate the earth's magnetic field in the year 1600. He discovered that the earth had magnetic properties and a magnetic field based on his investigations. If a magnet is strung from a thread and allowed to rotate in a horizontal plane, it will automatically align and come to rest in the north-south direction. The magnet will be aligned so that the north pole is attracted to the geographical south and the south pole is attracted to the geographical north.

The presence of some neutral spots in magnetic field lines is the second piece of evidence. The earth's magnetic field cancels the magnetic field produced by the magnet used to form field lines. These neutral locations cannot be detected without the earth's magnetic field. The third piece of evidence is that if soft iron is buried in a north-south path, it forms a magnet.

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9. What is the property of Magnetic Fields?

These rules can be used to summarise the attributes of magnetic field lines:

• The magnetic field's direction is tangent to the field line at any point in space.

• The field's strength is related to the distance between the lines. It is proportional to the number of lines that are parallel to the lines per unit area (called the areal density).

• One property of Magnetic field lines can never cross, implying that each point in space has its magnetic field.

• Another property of Magnetic field lines have no beginning or finish, resulting in closed loops with no beginning or end.

The last attribute has to do with the fact that the north and south poles are inextricably linked. It differs from electric field lines, which start and stop on positive and negative charges, respectively. Magnetic field lines would begin and finish on magnetic monopoles if they existed.