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QPage 286: Q4: HC Verma: Concepts of Physics - Volume 2 Magnetic Properties of Matter Page 286: Q4 Solution: Which of the following pairs has quantities of the same…

⚠️ Common Exam Traps & Conceptual Pitfalls

Students frequently assume the magnetic flux density $B$ and the magnetising field intensity $H$ (or magnetisation $I$) share the same dimensions because they appear together in $B=\mu_0(H+I)$. In reality $B$ is measured in tesla ($\text{kg·s}^{-2}\text{A}^{-1}$) while $H$ and $I$ are both in amperes per metre ($\text{A·m}^{-1}$); always verify the base SI units rather than relying on symbolic similarity.

Which of the following pairs has quantities of the same dimensions?

Multiple Choice Options

  • A Magnetic field B and magnetising field intensity H
  • B Magnetic field B and intensity of magnetisation I
  • C Magnetising field intensity H and intensity of magnetisation I
  • D Longitudinal strain and magnetic susceptibility

Step-by-Step Verified Solution

**Answer:** (c) Magnetising field intensity H and intensity of magnetisation I. **Step-by-Step Explanation:** Both H and I have the same dimensions (A/m).

All Questions in this Chapter

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