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prasanjit
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Asked: 2024-09-07T23:30:43+05:30 In:

Find the current density on the conductor surface when a magnetic field H = 3cos x i + zcos x j A/m, for z>0 and zero, otherwise is applied to a perfectly conducting surface in xy plane.

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0%a) cos x i ( 0 voters )
100% b) –cos x i ( 1 voter )
0%c) cos x j ( 0 voters )
0%d) –cos x j ( 0 voters )
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    1. prasanjit
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      b
      Explanation: By Ampere law, Curl (H) = J. The curl of H will be i(-cos x) – j(0) + k(-z sin x) = -cos x i – zsin x k. In the xy plane, z = 0. Thus Curl(H) = J = -cos x i.

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