b) The connection to ground is broken and the outer conductor is partially discharged to -1.2 μC/m. The inner conductor retains its original positive charge. i) If the cable sits in air, estimate the magnitude of the electric field on the outside surface. ii) The potential of the outer conductor is found to be 5kV. For both the earthed and unearthed cases, sketch the electric field magnitude E(r) and electric potential (r) over a radial distance 0 to 20mm. Explain briefly any differences between the plots. Q1. A high-voltage coaxial cable comprises two concentric copper conductors separated by a dielectric barrier made of FEP (Fluorinated Ethylene Propylene). The inner conductor is solid, having radius a = 2.4mm. The outer conductor has inner radius b = 14.7mm and thickness t = 2mm. The FEP dielectric has a relative permittivity of ε= 2.1. a) The outer conductor is initially grounded, and a potential difference Vab = 25kV is applied.

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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b) The connection to ground is broken and the outer conductor is partially
discharged to -1.2 μC/m. The inner conductor retains its original positive charge.
i)
If the cable sits in air, estimate the magnitude of the electric field on the
outside surface.
ii) The potential of the outer conductor is found to be 5kV. For both the earthed
and unearthed cases, sketch the electric field magnitude E(r) and electric
potential (r) over a radial distance 0 to 20mm. Explain briefly any
differences between the plots.
Transcribed Image Text:b) The connection to ground is broken and the outer conductor is partially discharged to -1.2 μC/m. The inner conductor retains its original positive charge. i) If the cable sits in air, estimate the magnitude of the electric field on the outside surface. ii) The potential of the outer conductor is found to be 5kV. For both the earthed and unearthed cases, sketch the electric field magnitude E(r) and electric potential (r) over a radial distance 0 to 20mm. Explain briefly any differences between the plots.
Q1. A high-voltage coaxial cable comprises two concentric copper conductors separated
by a dielectric barrier made of FEP (Fluorinated Ethylene Propylene).
The inner conductor is solid, having radius a = 2.4mm.
The outer conductor has inner radius b = 14.7mm and thickness t = 2mm.
The FEP dielectric has a relative permittivity of ε= 2.1.
a) The outer conductor is initially grounded, and a potential difference Vab = 25kV
is applied.
Transcribed Image Text:Q1. A high-voltage coaxial cable comprises two concentric copper conductors separated by a dielectric barrier made of FEP (Fluorinated Ethylene Propylene). The inner conductor is solid, having radius a = 2.4mm. The outer conductor has inner radius b = 14.7mm and thickness t = 2mm. The FEP dielectric has a relative permittivity of ε= 2.1. a) The outer conductor is initially grounded, and a potential difference Vab = 25kV is applied.
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