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Please help!

1) a magnetic field on one side of an infinite plane of uniform surface currentK=K*j(hat) is found to be

B= 1/4* mu(nought)*K*i(hat)

What is the magnetic field below the plane (accounting for the discontinuity across the plane)

I think I can use the following formula:

B(above)-B(below)=mu(nought)(K X n(hat))

The X here is a cross product.

Can someone confirm this for me?

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# Electromagnetics Problem

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