Questions
A solenoid has core of a material with relative permeability 501 , its winding carry a current of 1 A and the number of turns of solenoid is 500 per meter. The magnetization of the material is
detailed solution
Correct option is B
Given : n=500 turns/m i=1 Aμr=501 Now, Magnetic susceptibility 'χ', Magnetic intensity=H,H=ni = 500×1=500 A-m-1And χ=μr−1Magnetization M=χ.H ⇒M=μr−1H =500×500=2.5×105A-m-1.Talk to our academic expert!
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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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