A composite conductor 10 m long consists of an inner core of steel of radius 1.5 cm and an outer sheath of copper whose thickness is 0.5 cm. Take the resistivities of copper and steel as 1.77 x10-8 and 11.8 x10-8Ω respectively. Determine the resistance of the conductor.

A composite conductor 10 m long consists of an inner core of steel of radius 1.5 cm and an outer sheath of copper whose thickness is 0.5 cm. Take the resistivities of copper and steel as 1.77 x10-8 and 11.8 x10-8Ω respectively. Determine the resistance of the conductor.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter4: Transmission Line Parameters

Section: Chapter Questions

Problem 4.17P: Determine the GMR of each of the unconventional stranded conductors shown in Figure 4.30. All...

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Question

Conductors

A composite conductor 10 m long consists of an inner core of steel of radius 1.5 cm and
an outer sheath of copper whose thickness is 0.5 cm. Take the resistivities of copper and
steel as 1.77 x10^-8 and 11.8 x10^-8Ω respectively.

Determine the resistance of the conductor.
If the total current in the conductor is 60 A, what current flows in each metal?
Find the resistance of a solid copper conductor of the same length and cross-sectional areas as the sheath.

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