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Physics
Relative permeability of iron is 5500 . Its magnetic susceptibility is
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Q. Relative permeability of iron is $5500$ . Its magnetic susceptibility is
NTA Abhyas
NTA Abhyas 2022
A
$5499$
B
$5500\times 10^{7}$
C
$5500\times 10^{- 7}$
D
$5501$
Solution:
The relation for magnetic susceptibility is given by
$μ_{r}=1+χ$
Or $χ=u_{r}-1$
Given, $μ_{r}=5500$
$∴ \, χ=5500-1=5499$