The loop shown in Fig. 5-36 (P5.9) consists of radial lines and

The loop shown in Fig. 5-36 (P5.9) consists of radial lines and

The loop shown in Fig. 5-36 (P5.9) consists of radial lines and segments of circles whose centers are at point P. Determine the magnetic field H at P in terms of a, b, ?, and I.