- #1
roccofitz
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Homework Statement
Question:
A solenoid has of radius 100mm and turns density of 5 turns/mm has a current of 10 Amps flowing in it. There is a loop of radius 15mm and 25 turns within the solenoid. The loop is free to rotate about an axis which is normal to the axis of the solenoid. Determine the torque on the loop when there is 2 Amps flowing in it and its plane is normal to the cross sectional plane of the solenoid.
Homework Equations
magnetic dipole moment mu=NIA
N= number of turns
I=current
A=area
torque=mu X B X=cross product
The Attempt at a Solution
mu =(25)(2)(7.07x10^-4)
mu= 0.03535
I can get the magnetic dipole moment in the loop but after that I am stuck??