Question

The magnetic susceptibility of iron is 5499 . The relative permeability of iron will be

• A. $5500 \times 10^7$
• B. $5500 \times 10^{-7}$
• C. 5500
• D. 5501

Hint:

$\mu_r = 1 + \chi$. It's a simple addition, but essential for understanding material properties in magnetism.

Answer 1

The Correct Option is C

Step 1: Concept
Relative permeability ($\mu_r$) and magnetic susceptibility ($\chi$) are related by the formula $\mu_r = 1 + \chi$.

Step 2: Meaning
Susceptibility measures how easily a material is magnetized, while permeability measures how easily magnetic lines pass through it.

Step 3: Analysis
Given $\chi = 5499$. $\mu_r = 1 + 5499 = 5500$.

Step 4: Conclusion
The relative permeability of iron is 5500. Final Answer: (C)