A closely wound solenoid of 800 turns an...

A closely wound solenoid of 800 turns and area of cross-section `2.5xx10^(4)m^(2)` carries a current of 3.0A. Explain the sense in which the solenoid acts like a bar magnet. What is its associated magnetic moment?

`0.5 J//T`

`0.3 J//T`

`0.6 J//T`

`0.8 J//T`

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