HC Verma Class 12 Physics Solutions Chapter 36: Permanent Magnets

HC Verma Solutions of Concept of Physics Part 2 Chapter -36 Permanent Magnets

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HC Verma Class 12 Physics Solutions Chapter 36: Permanent Magnets PDF

This page has detailed, step-by-step explanations of every question in HC Verma Class 12 Physics Solutions Chapter 36. For example, in the chapter “Permanent Magnets” which is the important chapter of Volume 2 of HC Verma’s concept of physics for jee and neet, all of the questions are solved and the steps are explained to help you learn. Utopper is a smart way for students to go over the whole Physics Syllabus again and again. The questions and answers help them study in a way that will help them do well on their exams.

In the HC Verma Class 12 Physics Solutions Chapter 36 “Permanent Magnets” concept of physics, all of the questions are solved and the steps are explained to help you learn. On the Utopper website where students can get free Reference Book Solutions and other study materials like Revision notes, Sample papers, and Important Questions. Science will be easier to learn if you have access to HC Verma Solutions and solutions for other courses.

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HC Verma Class 12 Physics Solutions Chapter 36

About the chapter: HC Verma Solutions Class 12 Physics Chapter 36

Permanent magnets are made of materials that keep their magnetic properties for a long time at room temperature. There are some things that can’t be used to make permanent magnets. The Hysteresis curve helps choose the right kind of material. Permanent magnets are made from things like steel and alnico that have a high retentivity, coercivity, and relative magnetic permeability.

Hold a steel rod in one hand and use the other end of a bar magnet to rub it in a certain direction. As a result, a magnet that stays in place is made. This kind of magnetization is called the single-touch method of magnetization. But the best way to make a permanent magnet is to put a suitable magnetic material in the center of a solenoid and then run a direct current through it. So, the material in the core of the solenoid becomes magnetized by the magnetic field made by the current-carrying solenoid. This kind of magnetization is called the electrical method of magnetization.

Permanent magnets are used in many things, like magnetic door stops and magnetic screwdrivers. Materials used in electromagnets must have a high relative magnetic permeability and a low relative magnetic retentivity. But the hysteresis loop for this kind of material isn’t very big.

Because of all of these things, soft iron is the best thing to use to make electromagnets. Put a soft iron rod in the center of a solenoid. Then run electricity through it. The soft iron rod in the core of the solenoid makes the magnetic field many times stronger. Because soft iron has a low retentivity, when the current through the solenoid is turned off, the solenoid’s magnetism is also turned off. Electromagnets are also called “transient magnets” because of this.

Electromagnets are used in many things, like electric bells, loudspeakers, and the diaphragms of telephones. Cranes use huge electromagnets to move a lot of iron, steel, and machines. 

HC Verma Solutions Class 12 Physics Part 2 Complete Syllabus

  • Chapter 23 – Heat and Temperature
  • Chapter 24 – Kinetic Theory of Gases
  • Chapter 25 – Calorimetry
  • Chapter 26 – Laws of Thermodynamics
  • Chapter 27 – Specific Heat Capacities of Gases
  • Chapter 28 – Heat Transfer
  • Chapter 29 – Electric Field and Potential
  • Chapter 30 – Gauss’s Law
  • Chapter 31 – Capacitors
  • Chapter 32 – Electric Current in Conductors
  • Chapter 33 – Thermal and Chemical Effects of Current
  • Chapter 34 – Magnetic Field
  • Chapter 35 – Magnetic Field due to a Current
  • Chapter 36 – Permanent Magnets
  • Chapter 37 – Magnetic Properties of Matter
  • Chapter 38 – Electromagnetic Induction
  • Chapter 39 – Alternating Current
  • Chapter 40 – Electromagnetic Waves
  • Chapter 41 – Electric Current through Gases
  • Chapter 42 – Photoelectric Effect and Wave-Particle Duality
  • Chapter 43 – Bohr’s Model and Physics of Atom
  • Chapter 44 – X-rays
  • Chapter 45 – Semiconductors and Semiconductor Devices
  • Chapter 46 – The Nucleus
  • Chapter 47 – The Special Theory of Relativity
HC Verma Solutions

Features of Utopper HC Verma Solutions Class 12 Physics Chapter 36

  • Students can solve similar problems on their own with the help of HC Verma’s answers in the Utopper.
  • Students are given answers that are correct and easy to understand.
  • The solutions are given to match the level of understanding of a student in that class.
  • The HC Verma solutions that Utopper gives the answer to and explains all of the questions in each chapter.

FAQ ( Frequently Asked Questions )

1. Where can I get HC Verma solutions?

Ans – Utopper offers HC Verma answers that are correct and have been worked out by experts. Our website, utopper.com, is where you can find HC Verma solutions. This is free, and if you study these answers, you can pass the JEE.

2. How Should I Study HC Verma For IIT JEE Preparation?

Ans – Students have used this book to study for JEE for the past twenty years, and they have all passed JEE. So, this book can’t be ignored. Once you’ve figured out how to solve the example problems, you can compare your answers to those in the book. If your answer is right, compare it to the solution to make sure you used the right steps to get there. If your answer is wrong, look at the other solutions to figure out “why” your answer is wrong. If you made a math or procedure mistake, you’ll need to find a way to fix it if you want to do well on an exam like the JEE.

3. Is HC Verma enough for the JEE Advanced?

Ans – Is the H.C. Verma book enough to prepare for the JEE Main and Advanced? H.C. Verma is a good book for getting ready for the JEE, and it goes into detail about each topic.

4. Who is better: SL Arora or HC Verma?

Ans – If you want to take the boards, SL Arora will do fine, and you won’t have to take HCV. But if you are studying for competitive exams like IIT/JEE mains or advanced, you should definitely go for HCV because it has more advanced problems and will help you solve more complicated problems. 

5. What is the best way to solve HC Verma?

Ans- Start from the beginning. Don’t skip around or move in a random way. Before you try to solve the problems, read the whole chapter. Take your time reading and make sure you understand the ideas.

6. Is only HC Verma Solutions enough for NEET Preparation?

Ans – HC Verma won’t help you enough on its own. It will help you with one subject, but you’ll need to look at other books for the rest. You can also use NCERT books, which are very helpful for passing the NEET exam. For the NEET exam, you need a lot of practice, which you can get from reading about many different things.

7. What are Magnetic Metallic Elements?

Ans – Most of these materials have electron spins that are not paired up, and almost all of them are paramagnetic. Ferromagnetic materials are those in which the spins interact in a way that causes them to align on their own (what is loosely often termed as magnetic). Some metals are ferromagnetic when they are found in their natural state, like in ores. This is because their regular atomic structure of crystalline makes their spins interact with each other.

Some of them are iron ore (also called lodestone or magnetite), nickel, cobalt, and the rare earth metals gadolinium and dysprosium (at a very low temperature). These kinds of naturally occurring ferromagnets were used in the first studies, which looked at things like magnetism. But technology has made it easier to find magnetic materials, which now include a wide range of items made from naturally magnetic elements.

8. What is the difference between a permanent magnet and an electromagnet?

Ans – A permanent magnet has a magnetic field that doesn’t change, but an electromagnet’s magnetic field changes with the flow of electricity through it. When current flows through an electromagnet, a coil of wire is made that acts as a magnet. Most of the time, an electromagnet is wrapped around a ferromagnetic material like steel to make its magnetic field stronger.

About a permanent magnet: If you run electricity through it, you can see how magnetic it is.

  • The strength changes based on how much electricity is going through it. Only for a short time are magnetic properties taken away.
  • To keep its magnetic field, it needs a steady flow of power.
  • It is usually made of soft things.
  • The poles of this kind of magnet can be switched with the help of electricity.

About the electromagnet: When something is magnetized, it gets magnetic properties.

  • How strong it is depends on what kind of materials were used to build it.
  • It stops being magnetic and is no longer worth anything.
  • It doesn’t need electricity all the time to keep its magnetic field going.
  • Most of the time, it is made of hard materials.
  • The poles of this kind of magnet can’t be moved.

9. What is the best way to demagnetize a permanent magnet?

Ans – A technique for demagnetizing a permanent magnet. Permanent magnets can be made less magnetic in the following ways:

  • Magnets are heated to very high levels.
  • When you hit a magnet, the magnetic pull between its atoms gets weaker.
  • If you hit one magnet with the other in a weak way, it will lose some of its magnetic strength.

Put the permanent magnet in a solenoid that runs East-West over the earth’s surface, and then run an alternating current through it. The polarity of the coil will keep changing because of the alternating current. Because of this, the microscopic atomic magnets in the permanent magnet will become confused, and the permanent magnet will lose its magnetism.