Good morning.

In my case, I have placed an iron bar at a certain distance from the solenoid as shown in the image. And the next thing, I have induced a voltage of 10V to the solenoid, and this has moved the bar inside it. The magnetic field can be obtained with the following equation, B=LIN.

• However, I would like to calculate the force with which the magnetic field displaces this iron bar.

I do not know if there is an equation to determine the strength of the magnetic field in a solenoid other than this one.F=qvBsen()

But in that equation, I understand that it is only for moving particles of a magnetic field, where I need to know the charge q and its v.

F