Solenoid (Electromagnet) Force Calculator
This calculator computes the force between a solenoid and another piece of ferromagnetic material separated by a gap of distance \( g \).
The formula used is:
\[
F = \frac{(N \cdot I)^2 \cdot \mu_0 \cdot A}{2 \cdot g^2}
\]
where:
- \(\mu_0 = 4\pi \times 10^{-7}\)
- \(F\) is the force in Newtons
- \(N\) is the number of turns
- \(I\) is the current in Amps
- \(A\) is the area in length units squared
- \(g\) is the length of the gap between the solenoid and a piece of metal
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