All Problems

Constant Magnetic Field, Magnetics

Problem 3.225

A current \(I\) flows in a long straight wire with cross-section having the form of a thin half-ring of radius \(R\) (Fig. 3.61 ). Find the induction of the magnetic field at the point \(O\).

Reveal Answer
B=μ0I/π2RB=\mu_{0} I / \pi^{2} R