An electromagnetic wave propagating in seawater has an electric field with a time variation given by E zE0 cos 61559 t If the permittivity of water is 81 61541 0 and its conductivity is 4 (S m), find the ratio of the magnitudes of the conduction current density to displacement current density at each of the following frequencies (a) 1 kHz, (b) 1 MHz, (c) 1 GHz, (d) 100 GHz

Question: An electromagnetic wave propagating in seawater has an electric field with a time variation given by E = zE0 cost. If the permittivity of water

An electromagnetic wave propagating in seawater has an electric field with a time variation given by E = zE0 cost. If the permittivity of water is 810 and its conductivity is 4 (S/m), find the ratio of the magnitudes of the conduction current density to displacement current density at each of the following frequencies:
(a) 1 kHz,
(b) 1 MHz,
(c) 1 GHz,
(d) 100 GHz.

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From Eq 644 the displacement current density is given by d JdD t and ... View full answer

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