1.

The depth of penetration δ of a plane electromagnetic wave incident normally on a good conductor is

A. \(\frac{1}{{\sqrt {2\pi f\mu \sigma } }}\)
B. \(\frac{1}{{\sqrt {\pi f\mu \sigma } }}\)
C. \(\frac{2}{{\sqrt {3\pi f\mu \sigma } }}\)
D. \(\frac{2}{{\sqrt {\pi f\mu \sigma } }}\)
Answer» C. \(\frac{2}{{\sqrt {3\pi f\mu \sigma } }}\)


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