New Formulas for the Mutual Inductance and the Magnetic Force of the System: Thin Disk Coil (Pancake) with Inverse Radial Current Density and Thin Wall Solenoid with Constant Azimuthal Current Density. GJRE. 2018;18(F4):11-16. Accessed June 9, 2026. https://engineeringresearch.org/index.php/GJRE/article/view/1825