Question: 9. A fat wire, radius a, carries a constant current I, uniformly distributed over its cross section. A narrow gap in the wire, of

9. A fat wire, radius a, carries a constant current I, uniformly

9. A fat wire, radius a, carries a constant current I, uniformly distributed over its cross section. A narrow gap in the wire, of width w < a, forms a parallel-plate capacitor, as shown in figure below. Find the magnetic field in the gap, at a distance s < a from the axis. +o 10. Imagine two concentric metal spherical shells. The inner one (radius a) carries a

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