Question

Relative permeability of iron is 5500. Its magnetic susceptibility is

• A. $5499$
• B. $5500\times 10^7$
• C. $5500\times 10^{-7}$
• D. $5501$

Answer 1

Answer: (A)

${\mu }_r$ = 5500, using 1 + $\chi ={\mu }_2$ , we get $\chi$ = 5500 - 1 = 5499.