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The propagation constant of the wave in a conductor with air as medium is(a) √(ωμσ)(b) ωμσ(c) √(ω/μσ)(d) ω/μσI had been asked this question during an online exam.Asked question is from Plane Waves in Good Conductor in chapter EM Wave Propagation of Electromagnetic Theory

Answer»

Right answer is (a) √(ωμσ)

The BEST explanation: The propagation constant is the sum of the attenuation constant and the PHASE constant. In CONDUCTORS, the attenuation and phase constant both are same and it is GIVEN by √(ωμσ/2). Their sum will be √(ωμσ), is the propagation constant.



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