52. The diameter of the toroid (midline) D = 50 cm. The toroid contains N = 2000 turns and cross-sectional area is S = 20 cm2. Calculate the energy W of the magnetic field of the toroid with a current I = 5 A. Consider a uniform magnetic field of a toroid. The core is made of a nonmagnetic material.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)