Field and Wave Electromagnetics 2nd Edition by David Cheng

Exercise 8

Determine and compare the intrinsic impedance, attentuation constant (in both Np/m and dB/m), and skin depth of copper [ cu = 5.80 x 10 7 (S/m)], silver [ ag = 6.15 x 10 7 (S/m)], and brass [ br = 1.59 x 10 7 (S/m)] at the following frequencies:
a) 60 (Hz),
(b) 1 (MHz), and
(c) 1 (GHz).