Answered: A coaxial cable is made up of two…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 10OQ: Two conducting wires A and B of the same length and radius are connected across the same potential...

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A coaxial cable is made up of two conductors, one which has a radius of 1.5 cm (inner conductor) and one which has a radius of 5 cm (outer conductor). The space between the two conductors is filled with a medium. The length of the cable is 200 m.

A potential difference of 3 kV is maintained between the conductors.
a) Use the analogy between the electric flux density and conduction current density fields to calculate the current through the medium (medium which is characterised by E_r = 1.8 and σ = 10 µS/m).
b) Calculate the power dissipated in the medium

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