Question

The relative permeability of iron is 6000. Its magnetic susceptibility is

• A. 5999
• B. 6001
• C. \(6000 \times 10^{-7}\)
• D. \(6000 \times 10^7\)

Hint:

Remember: \( \mu_r = 1 + \chi_m \). This relation helps convert between permeability and susceptibility in magnetic materials.

Answer 1

The Correct Option is A

The relation between relative permeability \( \mu_r \) and magnetic susceptibility \( \chi_m \) is: \[ \mu_r = 1 + \chi_m \Rightarrow \chi_m = \mu_r - 1 \] Given: \[ \mu_r = 6000 \Rightarrow \chi_m = 6000 - 1 = 5999 \]