Course Solutions Uncategorized (Answered) : Please Help Answer Question B Explain Medium Seen Conductor Low Frequencies Insulator Hig Q28382014

(Answered) : Please Help Answer Question B Explain Medium Seen Conductor Low Frequencies Insulator Hig Q28382014

Electromagnetism Given a linear medium with frequency independent conductivity ? and permittivity . Suppose that the electric field E varies harmonically with frequency w, i.e. the field is on the form E Eo cos (wt), where Eo is a constant vector and t is the time. Explain why the medium can be seen as a leader at low frequencies and as an insulator at high frequencies b) At what frequency can we roughly say this transition occurs? a) b) aD Tips: Look at the generalized Amps Law ? H-di -LU + ) . ds (integral form) or 

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