Each atom of an iron bar ( 
) has a magnetic moment 
. Knowing that the density of iron is 
, atomic weight is 56 and Avogadro's number is 
the magnetic moment of bar in the state of magnetic saturation will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
The number of atoms per unit volume in a specimen,
For iron, 
,
Total number of atoms in the bar is
The saturated magnetic moment of bar
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