Physics Help Forum Loop of wire falling out of a magnetic field.

 Electricity and Magnetism Electricity and Magnetism Physics Help Forum

 Dec 10th 2017, 03:57 PM #1 Junior Member   Join Date: Dec 2017 Posts: 1 Loop of wire falling out of a magnetic field. I am struggling on finding the time it takes the loop of wire to completely leave the field in part a. I have found the differential equation of motion to me dv/dt+at=g where a is a constant determined to be a=826.72. I found the solution of the DE to be v(t)=g/a(1-e^(-at)) I have tried integrating both the DE and the solution to get position as a function of time, but when integrating, my expressions all have involved the length of the side of wire, l. My professor assures me I do not need that information but I cannot figure out otherwise. Am I missing something? LINK TO PROBLEM: https://imgur.com/a/0T9sF

 Tags differential equation, falling, field, loop, magnetic, wire

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