B Field Of Solenoid

janae

14th April 2012 - 04:47 AM

A current balance is constructed to measure the force between a solenoid with n=10000turns per length and a straight wire segment of length l=0.05m inside the solenoid and perpendicular to the field. Current through both is I=14 A. What is the B field inside the solenoid?

I've used B = µ*(n/l)*I but it's wrong, most likely due to the presence of the wire. any help?

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