Questions
A short bar magnet of magnetic moment has a cross sectional area of . If the intensity of magnetisation of the magnet is , the length of the magnet is
detailed solution
Correct option is C
Formula : Intensity of magnetization I=MV ⇒I=MALGiven : M=20Am2A=1.5×10-4m2l=105A/m∴I=MAl=201.5×10-4×105=43=1.33 mTalk to our academic expert!
Similar Questions
A cylindrical bar magnet ( radius = 1 cm , length = 10 cm ) has field intensity of 1000 A/m . The magnetic moment in the bar if permeability of its material is is ----------
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