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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? |
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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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