Problem 3.244

Calculate the magnetic moment of a thin wire with a current \(I=0.8\) A, wound tightly on half a tore (Fig. 3.66\() .\) The diameter of the cross-section of the tore is equal to \(d=5.0 \mathrm{~cm}\), the number of turns is \(N=500\).

\begin{array}{c} \mathbf{3 . 2 4 4 .} \\ =0.5 \mathrm{~A} \cdot \mathrm{m}^{2} \end{array} \quad p_{m}={ }^{1 / 2} N I d^{2}=

Constant Magnetic Field, Magnetics