1.

A coaxial cable is made of two brass conductors. The spacing between the conductors is filled with Teflon (εr = 2.1, tanδ = 0). Which one of the following circuits can represent the lumped element model of a small piece of this cable having length Δz? 

Answer»

Correct option (B)

Explanation:

Loss tangent, tanδ = 0

Loss tangent is given by,

tanδ = σ/ωε

So, σ = 0

G = Conductance per unit length of dielectric material

Since σ = 0, so G = 0



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