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A closely wound solenoid of 2000 turns a...

A closely wound solenoid of 2000 turns and area of cross section `1.6 xx 10^(-4) m^(2)` , and carrying a current of 4.0 A, is suspended through its centre allowing it to turn in a horizontal plane.
What is the the magnetic moment asociated with the solenoid ?

Text Solution

Verified by Experts

m = NIA = 2000 `xx1.6xx10^(-4)xx4`
= `12.8 xx 10^(-1)`
`= 1.28 J T^(-1)`
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