 #1
 103
 27
 Homework Statement:
 I want to find out the force that eddy currents apply on a magnet that is moving though a copper coil. I have not been able to find out how this works, although I know hoe to find the magnitude of the induced current occurring from the change in magnetic flux using Faraday's Law.
 Relevant Equations:

Emf = N dΦB/dt
This is Faradays Law I used to find the induced EMF.
How can I find out its effect on the magnet itself?
I have jus thought about how maybe I could sue the magnetic field strength equation for a solenoid (that I used to find the Emf in the first place) again, to find the magnetic field strength arising from the induced current:
B= μNI / L
where μ is the permativity of free space
N= Number of turns in the coil
L = length of the coil
Here I could just plug in the newly found Current using the calculations from before when I found the EMF and then plugged it into the equation I=V/R. Would this work? And if so, how does this even tell me what the force acting on the magnet is? Is there any way to calculate this?
B= μNI / L
where μ is the permativity of free space
N= Number of turns in the coil
L = length of the coil
Here I could just plug in the newly found Current using the calculations from before when I found the EMF and then plugged it into the equation I=V/R. Would this work? And if so, how does this even tell me what the force acting on the magnet is? Is there any way to calculate this?