Non-uniform displacement current figure 32-30 shows a circular region of radius R = 3.00 cm in which a displacement current id is directed out of the figure. The magnitude of the displacement current is id = (3.00 A) (r/R), where r is the radial distance (r ‰¤ R) from the center. What is the magnitude of the magnetic field due to id at radial distances?
(a) 2.00 cm
(b) 5.00 cm

In Figure 32.30

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R