Hey so I have been trying this problem and just cannot get it. thanks for the help.(adsbygoogle = window.adsbygoogle || []).push({});

To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 12cm in diameter and 55cm in length. You would like a 2.0A current to produce 2.5kG magnetic field inside your solenoid. What is the length of wire you will need to meet these specifications? The answer is 21km, but i cannot get this to work

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# Homework Help: Solenoid length of wire problem

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