Coil with an aliminum cylinder in varying magnetic field

[onstandby]

Hello all,

I am trying to apply Faraday's law of induction to calculate emf. I know the cross-sectional area, number of windings, and the magn. flux density (B) as a function of time.

So everything looks fine, except one thing. An aliminum cylinder is passing through the coil. In this case, can I still apply the faraday's law as it is, i.e.:

EMF Voltage = d (B(t) . Area) / dt ?

What will be the effect of the aliminum rod? I guess it will result in eddy current, but i am unsure if it s going to be approximately OK if I neglect the Al cylinder and use the above equation?
Please see the below figure.

 

[Vailanor]

Thanks!Yes, you can still apply Faraday's Law of induction, but you will need to take into account the effect of the aluminum cylinder. The presence of the aluminum cylinder will cause eddy currents to be induced in the cylinder, which will affect the rate of change of the magnetic flux density. To accurately calculate the EMF, you will need to take into account how the eddy currents generated by the aluminum cylinder will affect the rate of change of the magnetic flux density.