일반물리학 2 — Maxwell's Equations; Magnetism of Matter: Problem 10

10 A capacitor with parallel circular plates of radius \(R = 1.20 \text{ cm}\) is discharging via a current of \(12.0 \text{ A}\). Consider a loop of radius \(R/3\) that is centered on the central axis between the plates. (a) How much displacement current is encircled by the loop? The maximum induced magnetic field has a magnitude of \(12.0 \text{ mT}\). At what radius (b) inside and (c) outside the capacitor gap is the magnitude of the induced magnetic field \(6.00 \text{ mT}\)?