Magnetic Materials
Maharashtra Board · Class 12 · Physics
Practice quiz for Magnetic Materials — Maharashtra Board Class 12 Physics. MCQs and questions with answers to test your preparation.
Interactive on Super Tutor
Studying Magnetic Materials? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for practice quiz and more.
1,000+ Class 12 students started this chapter today
Quick Quiz: Magnetic Materials
0/4Tap an answer to check it instantly. No sign-up needed for these 4.
What is the SI unit of magnetization (M)?
A bar magnet has moment of inertia I = 400 g cm² and makes 15 oscillations per minute in Earth's horizontal magnetic field BH = 0.4 gauss. Calculate its magnetic moment.
The magnetic susceptibility of diamagnetic materials is:
According to Curie's law, magnetic susceptibility of paramagnetic material is:
Sample Questions
Which of the following materials are diamagnetic?
Show answer
Copper, Gold, Bismuth
Diamagnetic materials have negative susceptibility and are weakly repelled by magnets. Examples include copper, gold, bismuth, silver, and water. Iron and nickel are ferromagnetic materials.
Which of the following statements about ferromagnetic materials are correct?
Show answer
They have large positive susceptibility, They exhibit domain structure, They lose ferromagnetism above Curie temperature
Ferromagnetic materials have χ >> 1, show domain structure due to exchange interaction, and become paramagnetic above Curie temperature. They are strongly attracted by magnets, not weakly.
The gyromagnetic ratio for an electron is:
Show answer
e/2me
The gyromagnetic ratio is defined as the ratio of magnetic moment to angular momentum. For an orbital electron, this ratio is e/2me, where e is electronic charge and me is electron mass.
A toroidal core has magnetic field intensity H = 1000 A/m. If the core material has susceptibility χ = 2000, find the magnetic field B inside the core.
Show answer
2.51 T
Given: H = 1000 A/m, χ = 2000. Using B = μ₀(1 + χ)H = μ₀μᵣH. Here μᵣ = 1 + χ = 2001. Therefore, B = 4π × 10⁻⁷ × 2001 × 1000 = 2.51 T
+40 more questions available
Practice AllFrequently Asked Questions
What are the important topics in Magnetic Materials for Maharashtra Board Class 12 Physics?
How to score full marks in Magnetic Materials — Maharashtra Board Class 12 Physics?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Magnetic Materials
Important Questions
Practice with board exam-style questions
Revision Notes
Key points for last-minute revision
Formula Sheet
All formulas in one place
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect visually
Study Plan
Step-by-step plan to ace this chapter
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
NCERT Solutions
Every textbook question solved step by step
For serious students
Get the full Magnetic Materials chapter — for free.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for Maharashtra Board Class 12 Physics.