All Courses
Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity Get the App Login Join for Free
Sign in Open App
Class 12 Exam  >  Class 12 Questions  >  A hypothetical bar magnet AB is cut into two ... Start Learning for Free
SaveJoin the Discussion on the App
A hypothetical bar magnet AB is cut into two equal parts. One part is now kept over the other as shown. If M is the magnetic moment of the original magnet, what would be the magnetic moment of the following combinations so formed?
Clear all your Class 12 doubts with EduRev
Verified Answer
A hypothetical bar magnet AB is cut into two equal parts. One part is ...
The magnetic moment of the combination so formed will be zero because the pole strength gets neutralised. This neutralisation of the pole strength occurs because the magnet is cut into 2 equal parts and hence net magnetic moment is zero.
This question is part of UPSC exam. View all Class 12 courses
Most Upvoted Answer
A hypothetical bar magnet AB is cut into two equal parts. One part is ...
Introduction:
When a bar magnet is cut into two equal parts, each part will still possess its own magnetic field. The magnetic moment of a magnet depends on its strength and orientation. In this scenario, we will analyze the magnetic moments of the two combinations formed by placing one part of the magnet over the other.

Magnetic Moment of a Bar Magnet:
The magnetic moment of a magnet is defined as the product of its pole strength and the distance between its poles. Mathematically, it is given by the equation:

Magnetic Moment (M) = Pole Strength (m) × Distance between Poles (d)

Combination 1: North Pole to South Pole Alignment:
In this combination, the two cut pieces are aligned in such a way that the north pole of one piece is placed over the south pole of the other piece.

Magnetic Moment Calculation:
1. The pole strength of each individual piece remains the same as it was before cutting the magnet.
2. The distance between the poles of each individual piece also remains the same.
3. When the two pieces are combined, the net magnetic moment can be found by adding the magnetic moments of the individual pieces.
4. Since the pole strengths and distances are the same for each piece, the magnetic moments will add up to give twice the magnetic moment of a single piece.
- Net Magnetic Moment (Combination 1) = 2M

Combination 2: Like Poles Facing Each Other:
In this combination, the two cut pieces are aligned in such a way that the north pole of one piece is placed over the north pole of the other piece.

Magnetic Moment Calculation:
1. The pole strength of each individual piece remains the same as it was before cutting the magnet.
2. The distance between the poles of each individual piece also remains the same.
3. When the two pieces are combined, the net magnetic moment can be found by subtracting the magnetic moment of one piece from the magnetic moment of the other piece.
4. Since the pole strengths and distances are the same for each piece, the magnetic moments will cancel each other out.
- Net Magnetic Moment (Combination 2) = 0

Conclusion:
- When the two cut pieces of the bar magnet are aligned with north pole to south pole arrangement, the net magnetic moment of the combination is twice the magnetic moment of a single piece.
- When the two cut pieces of the bar magnet are aligned with like poles facing each other, the net magnetic moment of the combination is zero.
Explore Courses for Class 12 exam

Similar Class 12 Doubts

Read the following text and answer the following questions on the basis of the same:Super magnet The term super magnet is a broad term and encompasses several families of rare-earth magnets that include seventeen elements in the periodic table; namely scandium, yttrium, and the fifteen lanthanides. These elements can be magnetized, but have Curie temperatures below room temperature. This means that in their pure form, their magnetism only appears at low temperatures. However, when they form compounds with transition metals such as iron, nickel, cobalt, etc. Curie temperature rises well above room temperature and they can be used effectively at higher temperatures as well. The main advantage they have over conventional magnets is that their greater strength allows for smaller, lighter magnets to be used. Super magnets are of two categories:(i) Neodymium magnet: These are made from an alloy of neodymium, iron, and boron. This material is currently the strongest known type of permanent magnet. It is typically used in the construction of head actuators in computer hard drives and has many electronic applications, such as electric motors, appliances, and magnetic resonance imaging (MRI).(ii) Samarium-cobalt magnet: These are made from an alloy of samarium and cobalt. This second strongest type of rare Earth magnet is also used in electronic motors, turbo-machinery, and because of its high temperature range tolerance may also have many applications for space travel, such as cryogenics and heat resistant machinery. Rare-earth magnets are extremely brittle and also vulnerable to corrosion, so they are usually plated or coated to protect them from breaking, chipping, or crumbling into powder. Since super magnets are about 10 times stronger than ordinary magnets, safe distance should be maintained otherwise these may damage mechanical watch, CRT monitor, pacemaker, credit cards, magnetically stored media etc. These types of magnets are hazardous for health also. The greater force exerted by rare-earth magnets creates hazards that are not seen with other types of magnet. Magnets larger than a few centimeters are strong enough to cause injuries to body parts pinched between two magnets or a magnet and a metal surface, even causing broken bones. Neodymium permanent magnets lose their magnetism 5% every 100 years. So, in the truest sense Neodymium magnets may be considered as a permanent magnet.To raise the Curie point of rare Earth elements.

Read the following text and answer the following questions on the basis of the same:Super magnet The term super magnet is a broad term and encompasses several families of rare-earth magnets that include seventeen elements in the periodic table; namely scandium, yttrium, and the fifteen lanthanides. These elements can be magnetized, but have Curie temperatures below room temperature. This means that in their pure form, their magnetism only appears at low temperatures. However, when they form compounds with transition metals such as iron, nickel, cobalt, etc. Curie temperature rises well above room temperature and they can be used effectively at higher temperatures as well. The main advantage they have over conventional magnets is that their greater strength allows for smaller, lighter magnets to be used. Super magnets are of two categories: (i) Neodymium magnet: These are made from an alloy of neodymium, iron, and boron. This material is currently the strongest known type of permanent magnet. It is typically used in the construction of head actuators in computer hard drives and has many electronic applications, such as electric motors, appliances, and magnetic resonance imaging (MRI). (ii) Samarium-cobalt magnet: These are made from an alloy of samarium and cobalt. This second strongest type of rare Earth magnet is also used in electronic motors, turbo-machinery, and because of its high temperature range tolerance may also have many applications for space travel, such as cryogenics and heat resistant machinery. Rare-earth magnets are extremely brittle and also vulnerable to corrosion, so they are usually plated or coated to protect them from breaking, chipping, or crumbling into powder. Since super magnets are about 10 times stronger than ordinary magnets, safe distance should be maintained otherwise these may damage mechanical watch, CRT monitor, pacemaker, credit cards, magnetically stored media etc. These types of magnets are hazardous for health also. The greater force exerted by rare-earth magnets creates hazards that are not seen with other types of magnet. Magnets larger than a few centimeters are strong enough to cause injuries to body parts pinched between two magnets or a magnet and a metal surface, even causing broken bones. Neodymium permanent magnets lose their magnetism 5% every 100 years. So, in the truest sense Neodymium magnets may be considered as a permanent magnet.Super magnets are about _____ time stronger than ordinary magnets.

Read the following text and answer the following questions on the basis of the same:Super magnetThe term super magnet is a broad term and encompasses several families of rare-earth magnets that include seventeen elements in the periodic table; namely scandium, yttrium, and the fifteen lanthanides. These elements can be magnetized, but have Curie temperatures below room temperature. This means that in their pure form, their magnetism only appears at low temperatures. However, when they form compounds with transition metals such as iron, nickel, cobalt, etc. Curie temperature rises well above room temperature and they can be used effectively at higher temperatures as well. The main advantage they have over conventional magnets is that their greater strength allows for smaller, lighter magnets to be used. Super magnets are of two categories: (i) N eodymium magnet: These are made from an alloy of neodymium, iron, and boron. This material is currently the strongest known type of permanent magnet. It is typically used in the construction of head actuators in computer hard drives and has many electronic applications, such as electric motors, appliances, and magnetic resonance imaging (MRI). (ii) Samarium-cobalt magnet: These are made from an alloy of samarium and cobalt. This second strongest type of rare Earth magnet is also used in electronic motors, turbo-machinery, and because of its high temperature range tolerance may also have many applications for space travel, such as cryogenics and heat resistant machinery. Rare-earth magnets are extremely brittle and also vulnerable to corrosion, so they are usually plated or coated to protect them from breaking, chipping, or crumbling into powder. Since super magnets are about 10 times stronger than ordinary magnets, safe distance should be maintained otherwise these may damage mechanical watch, CRT monitor, pacemaker, credit cards, magnetically stored media etc.These types of magnets are hazardous for health also. The greater force exerted by rare-earth magnets creates hazards that are not seen with other types of magnet. Magnets larger than a few centimeters are strong enough to cause injuries to body parts pinched between two magnets or a magnet and a metal surface, even causing broken bones. Neodymium permanent magnets lose their magnetism 5% every 100 years. So, in the truest sense Neodymium magnets may be considered as a permanent magnet.Curie point of pure rare Earth elements is

Read the following text and answer the following questions on the basis of the same:Super magnet The term super magnet is a broad term and encompasses several families of rare-earth magnets that include seventeen elements in the periodic table; namely scandium, yttrium, and the fifteen lanthanides. These elements can be magnetized, but have Curie temperatures below room temperature. This means that in their pure form, their magnetism only appears at low temperatures. However, when they form compounds with transition metals such as iron, nickel, cobalt, etc. Curie temperature rises well above room temperature and they can be used effectively at higher temperatures as well. The main advantage they have over conventional magnets is that their greater strength allows for smaller, lighter magnets to be used. Super magnets are of two categories:(i) Neodymium magnet: These are made from an alloy of neodymium, iron, and boron. This material is currently the strongest known type of permanent magnet. It is typically used in the construction of head actuators in computer hard drives and has many electronic applications, such as electric motors, appliances, and magnetic resonance imaging (MRI).(ii) Samarium-cobalt magnet: These are made from an alloy of samarium and cobalt. This second strongest type of rare Earth magnet is also used in electronic motors, turbo-machinery, and because of its high temperature range tolerance may also have many applications for space travel, such as cryogenics and heat resistant machinery. Rare-earth magnets are extremely brittle and also vulnerable to corrosion, so they are usually plated or coated to protect them from breaking, chipping, or crumbling into powder. Since super magnets are about 10 times stronger than ordinary magnets, safe distance should be maintained otherwise these may damage mechanical watch, CRT monitor, pacemaker, credit cards, magnetically stored media etc. These types of magnets are hazardous for health also. The greater force exerted by rare-earth magnets creates hazards that are not seen with other types of magnet. Magnets larger than a few centimeters are strong enough to cause injuries to body parts pinched between two magnets or a magnet and a metal surface, even causing broken bones. Neodymium permanent magnets lose their magnetism 5% every 100 years. So, in the truest sense Neodymium magnets may be considered as a permanent magnet.Neodymium and Samarium are

Read the following text and answer the following questions on the basis of the same: Super magnet The term super magnet is a broad term and encompasses several families of rare-earth magnets that include seventeen elements in the periodic table; namely scandium, yttrium, and the fifteen lanthanides. These elements can be magnetized, but have Curie temperatures below room temperature. This means that in their pure form, their magnetism only appears at low temperatures. However, when they form compounds with transition metals such as iron, nickel, cobalt, etc. Curie temperature rises well above room temperature and they can be used effectively at higher temperatures as well. The main advantage they have over conventional magnets is that their greater strength allows for smaller, lighter magnets to be used. Super magnets are of two categories: (i) Neodymium magnet: These are made from an alloy of neodymium, iron, and boron. This material is currently the strongest known type of permanent magnet. It is typically used in the construction of head actuators in computer hard drives and has many electronic applications, such as electric motors, appliances, and magnetic resonance imaging (MRI). (ii) Samarium-cobalt magnet: These are made from an alloy of samarium and cobalt. This second strongest type of rare Earth magnet is also used in electronic motors, turbo-machinery, and because of its high temperature range tolerance may also have many applications for space travel, such as cryogenics and heat resistant machinery. Rare-earth magnets are extremely brittle and also vulnerable to corrosion, so they are usually plated or coated to protect them from breaking, chipping, or crumbling into powder. Since super magnets are about 10 times stronger than ordinary magnets, safe distance should be maintained otherwise these may damage mechanical watch, CRT monitor, pacemaker, credit cards, magnetically stored media etc. These types of magnets are hazardous for health also. The greater force exerted by rare-earth magnets creates hazards that are not seen with other types of magnet. Magnets larger than a few centimeters are strong enough to cause injuries to body parts pinched between two magnets or a magnet and a metal surface, even causing broken bones. Neodymium permanent magnets lose their magnetism 5% every 100 years. So, in the truest sense Neodymium magnets may be considered as a permanent magnet.Neodymium permanent magnets lose their magnetism ____ % every 100 years.

A hypothetical bar magnet AB is cut into two equal parts. One part is now kept over the other as shown. If M is the magnetic moment of the original magnet, what would be the magnetic moment of the following combinations so formed?
Question Description
A hypothetical bar magnet AB is cut into two equal parts. One part is now kept over the other as shown. If M is the magnetic moment of the original magnet, what would be the magnetic moment of the following combinations so formed? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A hypothetical bar magnet AB is cut into two equal parts. One part is now kept over the other as shown. If M is the magnetic moment of the original magnet, what would be the magnetic moment of the following combinations so formed? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A hypothetical bar magnet AB is cut into two equal parts. One part is now kept over the other as shown. If M is the magnetic moment of the original magnet, what would be the magnetic moment of the following combinations so formed?.
Solutions for A hypothetical bar magnet AB is cut into two equal parts. One part is now kept over the other as shown. If M is the magnetic moment of the original magnet, what would be the magnetic moment of the following combinations so formed? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of A hypothetical bar magnet AB is cut into two equal parts. One part is now kept over the other as shown. If M is the magnetic moment of the original magnet, what would be the magnetic moment of the following combinations so formed? defined & explained in the simplest way possible. Besides giving the explanation of A hypothetical bar magnet AB is cut into two equal parts. One part is now kept over the other as shown. If M is the magnetic moment of the original magnet, what would be the magnetic moment of the following combinations so formed?, a detailed solution for A hypothetical bar magnet AB is cut into two equal parts. One part is now kept over the other as shown. If M is the magnetic moment of the original magnet, what would be the magnetic moment of the following combinations so formed? has been provided alongside types of A hypothetical bar magnet AB is cut into two equal parts. One part is now kept over the other as shown. If M is the magnetic moment of the original magnet, what would be the magnetic moment of the following combinations so formed? theory, EduRev gives you an ample number of questions to practice A hypothetical bar magnet AB is cut into two equal parts. One part is now kept over the other as shown. If M is the magnetic moment of the original magnet, what would be the magnetic moment of the following combinations so formed? tests, examples and also practice Class 12 tests.
Explore Courses for Class 12 exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Get App
© EduRev
Education Revolution
Follow Us
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup