Calculate the frequency at which the conduction and displacement currents become equal with unity conductivity in a material of permittivity 2.(a) 18 GHz(b) 9 GHz(c) 36 GHz(d) 24 GHzThis question was posed to me in an online interview.This interesting question is from Displacement and Conduction Current topic in portion Electric Fields in Material Space of Electromagnetic Theory

Calculate the frequency at which the conduction and displacement curre

1.	Calculate the frequency at which the conduction and displacement currents become equal with unity conductivity in a material of permittivity 2.(a) 18 GHz(b) 9 GHz(c) 36 GHz(d) 24 GHzThis question was posed to me in an online interview.This interesting question is from Displacement and Conduction Current topic in portion Electric Fields in Material Space of Electromagnetic Theory
Answer» RIGHT choice is (b) 9 GHz The explanation is: When Jd = JC , we get εωE = σE. Thus εo(2∏f) = σ. On SUBSTITUTING CONDUCTIVITY as one and PERMITTIVITY as 2, we get f = 9GHz.

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