case study chapter 5 class 12 physics

Magnetism and Matter

Class 12 th physics chapter case study.

Case Study 1: Magnetic Materials and Their Classification

Magnetic materials can be classified into different categories based on their magnetic properties: diamagnetic, paramagnetic, and ferromagnetic.

Diamagnetic materials have no permanent magnetic dipoles and are weakly repelled by a magnetic field (e.g., copper, bismuth).
Paramagnetic materials have a small, positive susceptibility to magnetic fields and are weakly attracted (e.g., aluminum, platinum).
Ferromagnetic materials possess permanent magnetic dipoles and are strongly attracted to magnetic fields (e.g., iron, nickel).
d) Aluminum
a) No magnetic dipoles
b) Permanent magnetic dipoles
c) Temporary magnetic dipoles
d) Strong magnetic properties
a) A weak magnetic field
b) High temperatures
c) Mechanical stress
d) Strong magnetic fields
a) Greater than 0
b) Less than 0
c) Equal to 0
d) Infinite

Case Study 2: Magnetic Field of a Magnet

A bar magnet produces a magnetic field in the surrounding space, represented by magnetic field lines. The field lines emerge from the north pole and enter the south pole, showing the direction of the magnetic force. The strength of the magnetic field can be measured using a magnetic compass.

a) Straight lines
b) Circular
c) Closed loops
d) Divergent
a) Direction of the field
b) Strength of the field
c) Type of magnet
d) Speed of the magnet
a) The south pole of the magnet
b) The north pole of the magnet
c) The center of the magnet
d) The earth's magnetic field
a) Magnetic domain
b) Magnetic field
c) Magnetic dipole
d) Magnetic line

Case Study 3: Earth’s Magnetic Field

The Earth itself behaves like a giant magnet with a magnetic field that can be represented using magnetic field lines. The geographic north pole of the Earth is actually near the magnetic south pole, which is why compasses point north. The Earth's magnetic field is essential for navigation and also protects the planet from solar wind.

a) The Earth's gravitational field
b) The Earth's magnetic field
c) The Earth's electric field
d) The Earth's rotational motion
a) Magnetic declination
b) Magnetic inclination
c) Magnetic susceptibility
d) Magnetic permeability
a) Magnetosphere
b) Lithosphere
c) Atmosphere
d) Hydrosphere

Case Study 4: Magnetization and Magnetic Hysteresis

Magnetization is the process of inducing magnetic properties in a material. When a magnetic material is subjected to an external magnetic field, it becomes magnetized. When the external field is removed, the material may retain some magnetization, leading to hysteresis.

a) The process of creating a magnetic field
b) The ability to repel magnetic fields
c) The density of magnetic dipole moments in a material
d) The loss of magnetic properties
b) Magnetic susceptibility
c) Magnetic hysteresis
a) Energy loss
b) Energy gain
c) Magnetic field strength
d) Magnetic flux
a) Saturation magnetization
b) Remanent magnetization
c) Coercivity
d) Magnetostriction

Case Study 5: Applications of Magnetism

Magnetism has numerous applications in technology, such as magnetic storage devices (hard drives), electric motors, and transformers. Understanding magnetic properties is crucial for designing efficient devices.

a) Light bulb
b) Electric motor
d) Capacitor
a) Electric fields
b) Magnetic fields
c) Optical storage
d) Mechanical storage
a) Convert AC to DC
b) Increase or decrease voltage levels
c) Store electrical energy
d) Measure electric current
a) Electromagnetism
c) Static electricity
d) Kinetic energy

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CBSE Class 12 Physics Case Study Download PDF

CBSE Class 12 Physics Case Study Questions will help students this year to score good marks. Because such types of problems are a bit easier compared to other types of questions. Also, Class 12th Physics is a bit complex so having case-based problems, assertion and reason and Multiple Choice Questions will give a huge relief to the students. However, even though these types of problems seem easy, students need to practice the questions on a daily basis.

For that reason we have provided the complete set of CBSE Class 12 Physics Case study PDF in the below given table.

CBSE Class 12 Case based Question, Assertion & Reason, MCQ

CBSE Class 12 Case based Question, Assertion & Reason, Multiple Choice Questions, etc are available here. In class 12th physics there are a total of 15 chapters and all of them have several types of topics, formulas and much more. So students need to be well versed with all of them in order to score high marks in the upcoming term 1 board exam.

The Physics case study questions and assertion and reason problems that are based on objective type of questions are prepared by the subject matter experts. All the problems have been crafted by following the updated exam pattern and syllabus.

Since, the questions are along with the solutions the practitioner will get instant help. If they stuck on some questions. The below given table includes the Class 12 Physics Multiple Choice Questions, Assertion Reason, and Case Based Problems. Also, for a quick revision there are a few explanations of the topics in every single chapter.

All this content can be downloaded from the links below mentioned links. It’s Completely free of cost.

CBSE Class 12 Assertion and Reason Based Questions

CBSE Class 12 Assertion and Reason Based Questions Physics is a type of question that needs to be solved by verifying the two given statements. Assertion & reason problems consist of two statements viz, Assertion (Statement) and Reason. Assertion basically represents the facts where reason is given in the form of an explanation to the first statement.

Also, it is noted that reason may or may not be true for the given assertion or statement. So, students need to have a deep understanding of the topics to answer these questions.

Best Methods to Answer the Case Based Questions or Assertion and Reason Problems

The best methods to answer such types of questions are to read them carefully and collect the given data. Doing so enables the students to answer questions very easily. Also, another thing to keep in mind is to use the elimination methods. Sometimes using this helps save a lot of time and chances of having higher accuracy.

However, in the term of Class 12th Physics students are recommended to cover their entire physics syllabus. So, solving them becomes much easier.

Class 12 Physics Case Study Questions are based upon the passage. To solve such problems students need to understand the context of passage and use the given data to answer the case study questions.

The total of 5 Assertion & Reason type questions will carry class 12 Physics. Where Students will have leverage to choose any 4 questions to answer.

CBSE Class 12 Chemistry 2024-25: The Solid State Competency-Based Questions with Answers; Download Free PDF

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So, you’re in Class 12 and the concept of Physics case study questions is beginning to loom large. Are you feeling a little lost? Fear not! This article will guide you through everything you need to know to conquer these challenging yet rewarding Class 12 Physics Case Study Questions.

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We have provided here Case Study questions for the Class 12 Physics for board exams. You can read these chapter-wise Case Study questions. These questions are prepared by subject experts and experienced teachers. The answer and solutions are also provided so that you can check the correct answer for each question. Practice these questions to score excellent marks in your final exams.

Physics is more than just formulas and equations, right? It’s a way to interpret the natural world, and case studies provide a perfect opportunity for students to apply theoretical knowledge to real-world situations. So, what’s the importance of case studies in class 12 Physics? Well, they help you to solidify your understanding and enhance your analytical skills, which are invaluable for exams and beyond.

Table of Contents

Case Study-Based Questions for Class 12 Physics

There are total of 14 chapters Electric Charges And Fields, Electrostatic Potential And Capacitance, Current Electricity, Moving Charges And Magnetism, Magnetism And Matter, Electromagnetic Induction, Alternating Current, Electromagnetic Waves, Ray Optics and Optical Instruments, Wave Optics, Dual Nature Of Radiation And Matter, Atoms, Nuclei, Semiconductor Electronics Materials Devices, And Simple Circuits.

Case Study Based Questions on class 12 Physics Chapter 1 Electric Charges And Fields
Case Study Based Questions on Class 12 Physics Chapter 2 Electrostatic Potential And Capacitance
Case Study Based Questions on Class 12 Physics Chapter 3 Current Electricity
Case Study Based Questions on Class 12 Physics Chapter 4 Moving Charges And Magnetism
Case Study Based Questions on Class 12 Physics Chapter 5 Magnetism And Matter
Case Study Based Questions on Class 12 Physics Chapter 6 Electromagnetic Induction
Case Study Based Questions on Class 12 Physics Chapter 7 Alternating Current
Case Study Based Questions on Class 12 Physics Chapter 8 Electromagnetic waves
Case Study Based Questions on Class 12 Physics Chapter 9 Ray Optics and Optical Instruments
Case Study Based Questions on class 12 Physics Chapter 10 Wave Optics
Case Study Based Questions on class 12 Physics Chapter 11 Dual Nature of Matter and Radiation
Case Study Based Questions on class 12 Physics Chapter 12 Atoms
Case Study Based Questions on class 12 Physics Chapter 13 Nuclei
Case Study Based Questions on class 12 Physics Chapter 14 Semiconductor Electronics
Class 12 Chemistry Case Study Questions
Class 12 Biology Case Study Questions
Class 12 Maths Case Study Questions

Class 12 students should go through important Case Study problems for Physics before the exams. This will help them to understand the type of Case Study questions that can be asked in Grade 12 Physics examinations. Our expert faculty for standard 12 Physics have designed these questions based on the trend of questions that have been asked in last year’s exams. The solutions have been designed in a manner to help the grade 12 students understand the concepts and also easy-to-learn solutions.

How to Approach Physics Case Study Questions

Ah, the million-dollar question! How do you tackle these daunting case study questions? Let’s dive in.

Effective Reading Techniques

A vital part of cracking case study questions is understanding the problem correctly. Don’t rush through the question, take your time to fully grasp the scenario, and don’t skip over the details – they can be critical!

Conceptual Analysis

Once you’ve understood the problem, it’s time to figure out which physics principles apply. Remember, your foundational knowledge is your greatest weapon here.

Solving Strategies

Next, put pen to paper and start solving! Follow a systematic approach, check your calculations, and make sure your answer makes sense in the context of the problem.

Best Books for Class 12 Physics Exams

Class 12 Physics Syllabus 2024

Chapter–1: Electric Charges and Fields

Electric charges, Conservation of charge, Coulomb’s law-force between two point charges, forces between multiple charges; superposition principle, and continuous charge distribution.

Electric field, electric field due to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in a uniform electric field.

Electric flux, statement of Gauss’s theorem and its applications to find field due to infinitely long straight wire, uniformly charged infinite plane sheet, and uniformly charged thin spherical shell (field inside and outside).

Chapter–2: Electrostatic Potential and Capacitance

Electric potential, potential difference, electric potential due to a point charge, a dipole and system of charges; equipotential surfaces, electrical potential energy of a system of two-point charges and of electric dipole in an electrostatic field.

Conductors and insulators, free charges and bound charges inside a conductor. Dielectrics and electric polarization, capacitors and capacitance, combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a capacitor (no derivation, formulae only).

Chapter–3: Current Electricity

Electric current, flow of electric charges in a metallic conductor, drift velocity, mobility and their relation with electric current; Ohm’s law, V-I characteristics (linear and non-linear), electrical energy and power, electrical resistivity and conductivity, temperature dependence of resistance, Internal resistance of a cell, potential difference and emf of a cell, combination of cells in series and in parallel, Kirchhoff’s rules, Wheatstone bridge.

Chapter–4: Moving Charges and Magnetism

Concept of magnetic field, Oersted’s experiment.

Biot – Savart law and its application to current carrying circular loop.

Ampere’s law and its applications to infinitely long straight wire. Straight solenoid (only qualitative treatment), force on a moving charge in uniform magnetic and electric fields.

Force on a current-carrying conductor in a uniform magnetic field, force between two parallel current-carrying conductors-definition of ampere, torque experienced by a current loop in uniform magnetic field; Current loop as a magnetic dipole and its magnetic dipole moment, moving coil galvanometerits current sensitivity and conversion to ammeter and voltmeter.

Chapter–5: Magnetism and Matter

Bar magnet, bar magnet as an equivalent solenoid (qualitative treatment only), magnetic field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis (qualitative treatment only), torque on a magnetic dipole (bar magnet) in a uniform magnetic field (qualitative treatment only), magnetic field lines.

Magnetic properties of materials- Para-, dia- and ferro – magnetic substances with examples, Magnetization of materials, effect of temperature on magnetic properties.

Chapter–6: Electromagnetic Induction

Electromagnetic induction; Faraday’s laws, induced EMF and current; Lenz’s Law, Self and mutual induction.

Chapter–7: Alternating Current

Alternating currents, peak and RMS value of alternating current/voltage; reactance and impedance; LCR series circuit (phasors only), resonance, power in AC circuits, power factor, wattless current. AC generator, Transformer.

Chapter–8: Electromagnetic Waves

Basic idea of displacement current, Electromagnetic waves, their characteristics, their transverse nature (qualitative idea only). Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, X-rays, gamma rays) including elementary facts about their uses.

Chapter–9: Ray Optics and Optical Instruments

Ray Optics: Reflection of light, spherical mirrors, mirror formula, refraction of light, total internal reflection and optical fibers, refraction at spherical surfaces, lenses, thin lens formula, lens maker’s formula, magnification, power of a lens, combination of thin lenses in contact, refraction of light through a prism.

Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers.

Chapter–10: Wave Optics

Wave optics: Wave front and Huygen’s principle, reflection and refraction of plane wave at a plane surface using wave fronts. Proof of laws of reflection and refraction using Huygen’s principle. Interference, Young’s double slit experiment and expression for fringe width (No derivation final expression only), coherent sources and sustained interference of light, diffraction due to a single slit, width of central maxima (qualitative treatment only).

Chapter–11: Dual Nature of Radiation and Matter

Dual nature of radiation, Photoelectric effect, Hertz and Lenard’s observations; Einstein’s photoelectric equation-particle nature of light.

Experimental study of photoelectric effect

Matter waves-wave nature of particles, de-Broglie relation.

Chapter–12: Atoms

Alpha-particle scattering experiment; Rutherford’s model of atom; Bohr model of hydrogen atom, Expression for radius of nth possible orbit, velocity and energy of electron in his orbit, of hydrogen line spectra (qualitative treatment only).

Chapter–13: Nuclei

Composition and size of nucleus, nuclear force

Mass-energy relation, mass defect; binding energy per nucleon and its variation with mass number; nuclear fission, nuclear fusion.

Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits

Energy bands in conductors, semiconductors and insulators (qualitative ideas only) Intrinsic and extrinsic semiconductors- p and n type, p-n junction

Semiconductor diode – I-V characteristics in forward and reverse bias, application of junction diode -diode as a rectifier.

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You can click on the chapter-wise Case Study links given above and read the Class 12th Physics Case Study questions and answers provided by us. If you face any issues or have any questions please put your questions in the comments section below. Our teachers will be happy to provide you with answers.

FAQs Class 12 Physics Case Studies Questions

What is the best website for a case study of physics class 12 .

studyrate.in is the best website for Class 12 Physics Case Study Questions for Board Exams. Here you can find various types of Study Materials, Ebooks, Notes, and much more free of cost.

What are Physics case study questions?

Physics case study questions involve applying physics principles to solve real-world scenarios or problems.

How can I prepare for Physics case study questions?

Strengthen your basic concepts, practice solving a variety of problems, and make use of resources like the Class 12 Physics Case Study Questions PDF.

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Case Study Questions for Class 12 Physics

Chapter 1: Electric Charges and Fields Chapter 2: Electrostatic Potential and Capacitance Chapter 3: Current Electricity Chapter 4: Moving Charges and Magnetism Chapter 5: Magnetism and Matter Chapter 6: Electromagnetic Induction Chapter 7: Alternating Current Chapter 8: Electromagnetic Waves Chapter 9: Ray Optics and Optical Instruments Chapter 10: Wave Optics Chapter 11: Dual Nature of Radiation and Matter Chapter 12: Atoms Chapter 13: Nuclei Chapter 14: Semiconductor Electronics: Materials, Devices and Simple Circuits