Figure 4. The effect of the inner radius of the coil on the magnetic force between the coil and the magnet

From

Magnetic Force Calculation between Magnets and Coils

Ali Jebelli, Arezoo Mahabadi, Mustapha C. E. Yagoub, Hicham Chaoui

International Journal of Physics. 2020, 8(2), 71-80 doi:10.12691/ijp-8-2-5