An electromagnet as shown in the picture is used to create an atraction force F in the steel piece. Knowing that the air gap is g=2.5mm. The current in the coil is I=5.0 A and the core cross sectional area is A=400mm^2. The coil turns is N=2000. Find Inductance=L so the coil can create the force F felt by the steel piece.

An electromagnet as shown in the picture is used to create an atraction force F in the steel piece. Knowing that the air gap is g=2.5mm. The current in the coil is I=5.0 A and the core cross sectional area is A=400mm^2. The coil turns is N=2000. Find Inductance=L so the coil can create the force F felt by the steel piece.