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Statement of a problem № 3942

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Copper has an electrical conductivity s = 5.6x10^7 S^1 /m and a magnetic permeability n = 1. On this basis estimate the order of magnitude of the depth to which radiation at a frequency of 3000 Mc/s can penetrate a large copper screen.

Solution:
Copper has an electrical conductivity s = 5.6x10^7 S^1 /m and a magnetic permeab

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