# Physics 1251 HW 8 #4

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So I was working on this problem and I thought it was pretty straight forward.  For part a I was just going to use the equation for a solenoid B=(N I u)/(L). It tells you the desired B field, the current and the length of the rod, so all you have to do is solve for N.  The answer this gave me wasn't even close, so I don't know where to go from here.  Some help on where I should go would be great. Thanks.
asked Oct 19, 2014 in General