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Magnetism and Matter Set-2

Test your knowledge on Magnetism and Matter from Physics, Class 12.

The chapter "Magnetism and Matter" is a cornerstone of the Class 12 Physics curriculum, bridging the gap between moving charges and the intrinsic magnetic properties of materials. For the CBSE Board Exams, this chapter carries significant weight as it explores the fundamental behavior of magnetic dipoles, Earth’s magnetic field, and the classification of materials based on their magnetic response. Understanding these concepts is crucial for mastering both theoretical questions and numerical problems related to magnetic flux and field components.

In the latest 2024-25 syllabus, the focus remains on the qualitative and quantitative aspects of magnetic field lines, Gauss's Law in magnetism, and the distinctive characteristics of diamagnetic, paramagnetic, and ferromagnetic substances. This practice set is meticulously designed to align with the NCERT framework, ensuring students are well-prepared for both MCQ sections and conceptual reasoning required in the board examinations.

30

Minutes

30

Questions

1 / -0

Marking Scheme

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Questions in this Quiz

Q1: The net magnetic flux through any closed surface is always:

  • Positive

  • Negative

  • Zero

  • Dependent on the medium

Q2: A bar magnet of magnetic moment MM is cut into two equal parts parallel to its length. The magnetic moment of each part will be:

  • MM

  • M/2M/2

  • M/4M/4

  • 2M2M

Q3: The angle of dip at the magnetic equator of the Earth is:

  • 0∘0^\circ

  • 45∘45^\circ

  • 90∘90^\circ

  • 180∘180^\circ

Q4: Which of the following materials has a negative magnetic susceptibility (χ\chi)?

  • Aluminum

  • Copper

  • Iron

  • Nickel

Q5: The SI unit of magnetic pole strength is:

  • A⋅mA \cdot m

  • A/mA/m

  • A⋅m2A \cdot m^2

  • T⋅m/AT \cdot m/A

Q6: If the horizontal and vertical components of Earth's magnetic field are equal, the angle of dip at that place is:

  • 30∘30^\circ

  • 45∘45^\circ

  • 60∘60^\circ

  • 90∘90^\circ

Q7: According to Curie’s law, the magnetic susceptibility of a paramagnetic material is proportional to:

  • TT

  • 1/T1/T

  • T2T^2

  • 1/T21/T^2

Q8: Magnetic field lines:

  • Intersect at the poles

  • Form closed loops

  • Are only present inside the magnet

  • Start from the South pole and end at the North pole outside the magnet

Q9: A solenoid of 10001000 turns per meter has a core with relative permeability μr=500\mu_r = 500. If a current of 2A2 A flows through it, the magnetic field BB inside the core is:

  • 0.4π T0.4\pi \, T

  • 4π×10−2 T4\pi \times 10^{-2} \, T

  • 0.2π T0.2\pi \, T

  • 4π×10−4 T4\pi \times 10^{-4} \, T

Q10: The work done in rotating a magnetic dipole of moment MM in a uniform magnetic field BB from its stable equilibrium position to unstable equilibrium position is:

  • MBMB

  • 2MB2MB

  • Zero

  • −MB-MB

...and 20 more questions.

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