NEET Physics: Magnetism and Matter — MCQ Test 15

Q6. What is the magnetic field contribution \( B_m \) due to a material with magnetization \( M = 4 \times 10^5 \, \text{A m}^{-1} \)? (Take \( \mu_0 = 4\pi \times 10^{-7} \, \text{T m A}^{-1} \)).

Q7. A material with \( B = 0.35 \, \text{T} \) and \( H = 1800 \, \text{A m}^{-1} \) has \( M \): (Take \( \mu_0 = 4\pi \times 10^{-7} \, \text{T m A}^{-1} \)).

Q8. A solenoid with 600 turns per meter carries a current of \( 3.5 \, \text{A} \). What is the magnetic intensity \( H \) inside?

Q9. A material’s weak enhancement of the magnetic field inside it is due to:

Q10. A solenoid with magnetic field \( B = 0.8 \, \text{T} \) inside has a core with \( \mu_r = 400 \) and \( n = 800 \, \text{m}^{-1} \). What is the current \( I \) in the solenoid? (Take \( \mu_0 = 4\pi \times 10^{-7} \, \text{T m A}^{-1} \)).

NEET Physics — Magnetism and Matter

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A magnetic dipole of moment \( 0.15 \, \text{A m}^2 \) is in a uniform field of \( 0.8 \, \text{T} \) at \( 60^\circ \). What is the torque on it?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Magnetism and Matter. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Magnetic, Material, Repulsion, Original, Transversely, and Experiences.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. A magnetic dipole of moment \( 0.15 \, \text{A m}^2 \) is in a uniform field of \( 0.8 \, \text{T} \) at \( 60^\circ \). What is the torque on it?

  • A. 0.104 N m
  • B. 0.12 N m
  • C. 0.15 N m
  • D. 0.18 N m

Q2. A material’s weak repulsion from a magnetic field is due to:

  • A. Strong domain alignment
  • B. Partial moment alignment
  • C. Complete field expulsion
  • D. Induced opposing moments

Q3. A material with \( B = 0.4 \, \text{T} \) and \( H = 2000 \, \text{A m}^{-1} \) has \( M \): (Take \( \mu_0 = 4\pi \times 10^{-7} \, \text{T m A}^{-1} \)).

  • A. 3.0 × 10⁵ A m⁻¹
  • B. 3.1 × 10⁵ A m⁻¹
  • C. 3.15 × 10⁵ A m⁻¹
  • D. 3.163 × 10⁵ A m⁻¹

Q4. A bar magnet with original \( m = 2.0 \, \text{A m}^2 \) is cut transversely into two equal parts. What is \( m \) of each part?

  • A. 0.8 A m²
  • B. 0.9 A m²
  • C. 0.95 A m²
  • D. 1.0 A m²

Q5. A magnetic dipole placed in a uniform magnetic field experiences no net force but a torque. This is because:

  • A. Forces on the poles cancel out but produce a couple
  • B. The field exerts a net force in one direction
  • C. The dipole is inherently unstable in uniform fields
  • D. The field strength varies across the dipole

+ 5 more questions in the actual test

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