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5. A plane wave propagates in a conducting material with its phasor field expressed by
E = Ee -jßz-az where = 2x m¹, and a = 10³ m²¹.
(1) What is the wavelength of this plane wave?
(2) What is the skin depth of this conductor?
(3) Assume the frequency of this wave is 108 Hz. What is the phase velocity of this
plane wave?

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