CBSE Class 12th Physics Chapter 5 - Magnetism and Matter Important Questions with Answers

You should focus on solving CBSE Class 12th Physics Chapter 5: Magnetism and Matter important questions, especially to help you score high marks. By solving CBSE Class 12th Physics 5 questions, you will be solving exam-oriented questions only.

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CBSE Class 12th Physics Chapter 5 - Magnetism and Matter Important Questions with Answers are provided here to help you score more marks in the CBSE 12th exam. After completing the CBSE Class 12th Physics syllabus, you can go through the important questions from Chapter 5 - Magnetism and Matter that have the probability to come in the exam. Magnetism and Matter is one of the important chapters in class 12 that describes how magnetic forces impact different materials. Magnetism is a force or a property of matter that causes magnets to attract and repel each other, while matter is something that has mass and takes up space. The chapter explores the study of how different materials interact when they are exposed to a magnetic field, while describing the magnetic properties of these substances, which arises from the movement of electrons within their atoms. Important topics that must be covered are Magnetic Dipoles, Magnetic Domains, Ferromagnetic Materials, Paramagnetic Materials, Diamagnetic Materials and so on.

The CBSE Class 12th Physics syllabus 2025 comrprises a total of 9 units and 14 chapters. The total marks allotted for the CBSE 12th Physics paper are 70 marks. The remaining 30 marks will be provided for the Practical Examination. Magnetism and Matter is chapter 5 of Unit III, Magnetic Effects of Current and Magnetism. Both Unit III and Unit IV (Electromagnetic Induction and Alternating Currents) will carry 17 marks in the Physics exam. Prepare thoroughly with the most important questions of CBSE Class 12th Physics Chapter 5 - Magnetism and Matter. You can first cover the CBSE Class 12th Physics syllabus to understand the key topics and then start solving the CBSE Class 12th Physics Chapter 5 - Magnetism and Matter Important Question to get a better understanding of your preparation level. Start practicing now.

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At a place, the horizontal component of earth’s magnetic field is B and angle of dip is 60°. What is the value of horizontal component of the earth’s magnetic field at the equator? (Delhi 2017)

Question 2.

Write two properties of a material suitable for making
(a) a permanent magnet, and
(b) an electromagnet. (All India 2017)

Question 3.

Depict the behaviour of magnetic field lines near
(i) diamagnetic and
(ii) paramagnetic substances. Justify, giving reasons. (Comptt. Delhi 2017)

Question 4.

In what way is the behaviour of a diamagnetic material different from that of a paramagnetic, when kept in an external magnetic field? (All India 2016)

Question 5.

Define the following using suitable diagrams :
(i) magnetic declination and
(ii) angle of dip. In what direction will a compass needle point when kept at the
(i) poles and
(ii) equator? (Comptt. Delhi 2015)

Question 6.

Relative permeability of a material, µ_r = 0.5. Identify the nature of the magnetic material and write its relation to magnetic susceptibility. (Comptt. Delhi 2014)

Question 7.

Relative permeability of a material µ_r = 400. Identify the nature of the magnetic material (Comptt. Delhi 2014)

Question 8.

Relative permeability (µ_r) of a material has a value lying 1 < µ_r< 1 + ? (where ? is a small quantity). Identify the nature of the magnetic material. (Comptt. Delhi 2014)

Question 9.

What are permanent magnets? Give one example. (Delhi 2013)

Question 10.

Which of the following substances are diamagnetic?
Bi, Al, Na, Cu, Ca and Ni (Delhi 2013)

Question 1.

Which of the following substances are para-magnetic ?
Bi, Al, Cu, Ca, Pb, Ni (Delhi 2013)

Question 2.

Is the steady electric current the only source of magnetic field? Justify your answer. (Comptt. Delhi 2013)

Question 3.

Where on the surface of Earth is the vertical com-ponent of Earth’s magnetic field zero? (Comptt. Delhi 2013)

Question 4.

Where on the surface of Earth is the horizontal component of Earth’s magnetic field zero? (Comptt. Delhi 2013)

Question 5.

Where on the surface of Earth is the Earth’s magnetic field perpendicular to the surface of the Earth? (Comptt. Delhi 2013)

Question 6.

The motion of copper plate is damped when it is allowed to oscillate between the two poles of a magnet. What is the cause of this damping? (All India 2013)

Question 7.

State two characteristic properties distinguish¬ing the behaviour of diamagnetic and ferromagnetic materials. (Comptt. All India 2013)

Question 8.

Write two characteristic properties each to select materials suitable for
(i) permanent magnets and
(ii) electromagnets. (Comptt. All India 2013)

Question 9.

A coil of ‘N’ turns and radius ‘R’ carries a current ‘I’. It is unwound and rewound to make a square coil of side ‘a’ having same number of turns (N). Keeping the current ‘I’ same, find the ratio of the magnetic moments of the square coil and the circular coil. (Comptt. Delhi 2013)

Question 10.

Depict the behaviour of magnetic field lines when
(i) a diamagnetic material and
(ii) a paramagnetic material is placed in an external magnetic field. Mention briefly the properties of these materials which explain this distinguishing behaviour. (Comptt. All India 2013)