NEET Physics: Magnetism and Matter — MCQ Test 10

Q6. A material with \( \chi = -1 \) and \( \mu_r = 0 \) is classified as:

Q7. A material loses its magnetic properties when heated beyond a certain temperature because:

Q8. A magnetic dipole of moment \( 0.8 \, \text{A m}^2 \) is in a uniform field of \( 0.5 \, \text{T} \) at \( 45^\circ \). What is the torque on it?

Q9. The alignment of a magnetic dipole in a uniform field results in:

Q10. A magnetic dipole with \( m = 0.3 \, \text{A m}^2 \) in a field \( B = 0.4 \, \text{T} \) at \( 90^\circ \) has potential energy:

NEET Physics — Magnetism and Matter

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When a magnetic dipole is placed perpendicular to a uniform magnetic field, the torque acting on it is maximum because:

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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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10
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Key concepts covered in this specific test include Magnetic, Perpendicular, Potential, Material, Classified, and Properties.

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. When a magnetic dipole is placed perpendicular to a uniform magnetic field, the torque acting on it is maximum because:

  • A. The angle between the dipole moment and field is 90°
  • B. The dipole moment cancels the field
  • C. The field strength is minimized
  • D. The dipole aligns with the field lines

Q2. The magnetic field lines inside a bar magnet run from:

  • A. North to south
  • B. South to north
  • C. Center to poles
  • D. Poles to center

Q3. A dipole with \( m = 0.4 \, \text{A m}^2 \) in a field \( B = 0.3 \, \text{T} \) at \( 0^\circ \) has potential energy:

  • A. -0.15 J
  • B. -0.12 J
  • C. -0.10 J
  • D. -0.08 J

Q4. The magnetic potential energy of a dipole with \( m = 0.9 \, \text{A m}^2 \) in a field \( B = 0.2 \, \text{T} \) at \( 90^\circ \) is:

  • A. 0 J
  • B. -0.18 J
  • C. 0.18 J
  • D. -0.09 J

Q5. A material with \( \mu_r = 300 \) and \( H = 600 \, \text{A m}^{-1} \) has \( B \): (Take \( \mu_0 = 4\pi \times 10^{-7} \, \text{T m A}^{-1} \)).

  • A. 0.20 T
  • B. 0.22 T
  • C. 0.23 T
  • D. 0.25 T

+ 5 more questions in the actual test

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