NEET Physics: Magnetism and Matter — MCQ Test 18

Q6. The reason a paramagnetic material’s magnetization increases with a stronger external field is:

Q7. A dipole with \( m = 0.4 \, \text{A m}^2 \) in a field \( B = 0.8 \, \text{T} \) at \( 0^\circ \) has potential energy:

Q8. A diamagnetic material has a susceptibility \( \chi = -2 \times 10^{-5} \). What is its magnetic permeability \( \mu \) in terms of \( \mu_0 \)?

Q9. A material with \( \mu_r = 350 \) and \( H = 400 \, \text{A m}^{-1} \) has \( B \): (Take \( \mu_0 = 4\pi \times 10^{-7} \, \text{T m A}^{-1} \)).

Q10. A bar magnet with \( m = 1.6 \, \text{A m}^2 \) is at \( 0.8 \, \text{m} \) along its axis. What is \( B \)? (Take \( \mu_0 = 4\pi \times 10^{-7} \, \text{T m A}^{-1} \)).

NEET PhysicsMagnetism and Matter

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A bar magnet with magnetic moment \( 1.5 \, \text{A m}^2 \) is placed at a distance of \( 0.6 \, \text{m} \) along its axis. What is the magnetic field \( B \) at that point? (Take \( \mu_0 = 4\pi \times 10^{-7} \, \text{T m A}^{-1} \)).

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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, Distance, Contribution, Material, Experiences, and Primarily.

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 bar magnet with magnetic moment \( 1.5 \, \text{A m}^2 \) is placed at a distance of \( 0.6 \, \text{m} \) along its axis. What is the magnetic field \( B \) at that point? (Take \( \mu_0 = 4\pi \times 10^{-7} \, \text{T m A}^{-1} \)).

  • A. 1.39 × 10⁻⁶ T
  • B. 1.5 × 10⁻⁶ T
  • C. 1.6 × 10⁻⁶ T
  • D. 1.7 × 10⁻⁶ T

Q2. A dipole with \( m = 0.5 \, \text{A m}^2 \) in \( B = 0.1 \, \text{T} \) at \( 60^\circ \) has torque:

  • A. 0.03 N m
  • B. 0.035 N m
  • C. 0.04 N m
  • D. 0.043 N m

Q3. The magnetic field contribution \( B_m \) due to a material with \( M = 3.2 \times 10^5 \, \text{A m}^{-1} \) is: (Take \( \mu_0 = 4\pi \times 10^{-7} \, \text{T m A}^{-1} \)).

  • A. 0.38 T
  • B. 0.39 T
  • C. 0.40 T
  • D. 0.42 T

Q4. The magnetic field contribution \( B_m \) due to a material with \( M = 2 \times 10^5 \, \text{A m}^{-1} \) is: (Take \( \mu_0 = 4\pi \times 10^{-7} \, \text{T m A}^{-1} \)).

  • A. 0.20 T
  • B. 0.22 T
  • C. 0.25 T
  • D. 0.30 T

Q5. Unlike a bar magnet, an iron nail near a magnet experiences both a net force and a torque. This is primarily due to:

  • A. The uniform nature of the magnet’s field
  • B. The non-uniform field inducing a magnetic moment
  • C. The nail’s inherent magnetic poles
  • D. The cancellation of forces on the nail

+ 5 more questions in the actual test

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