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Solenoid Coil Electromagnetic Force Calculator

Calculate the force between a solenoid coil and another piece of ferromagnetic material using this calculator. Enter the values of current, area, number of turns and length of coil to find the result. Note The magnetic field of solenoid is usually uniform along the axis and weak outside the coil.

Solenoid Coil Electromagnetic Force Calculation

Current (i): amps
Area (a): m2
Number of turns (n): turns
Length (g): m
F: Newtons
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Formula: F = (n x i)2 x magnetic constant x a / (2 x g2) Where, F = Force, i = Current, g = Length of the gap between the solenoid and a piece of metal, a = Area n = Number of turns, Magnetic constant = 4 x PI x 10-7. Solenoid Coil Electromagnetic Force calculation is made easier here.

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