2.1 (A). A power transmission cable consists of ten copper wires each of 1.6 mm diameter surrounding three steel wires each of 3 mm diameter, Determine the combined E for the compound cable and hence determine the extension of a 30 m length of the cable when it is being laid with a tension of 2 kN. For steel, E = 200 GN/m²; for copper, E = 100 GN/m². 2.2 (A). If the maximum stress allowed in the copper of the cable of problem 2.1 is 60 MN/m², determine the maximum tension which the cable can support. [151.3 GN/m²; 9.6 mm.) [3.75 kN.)

2.1 (A). A power transmission cable consists of ten copper wires each of 1.6 mm diameter surrounding three steel wires each of 3 mm diameter, Determine the combined E for the compound cable and hence determine the extension of a 30 m length of the cable when it is being laid with a tension of 2 kN. For steel, E = 200 GN/m²; for copper, E = 100 GN/m². 2.2 (A). If the maximum stress allowed in the copper of the cable of problem 2.1 is 60 MN/m², determine the maximum tension which the cable can support. [151.3 GN/m²; 9.6 mm.) [3.75 kN.)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Engineering Drawing

Technical drawing has been around since ancient times. As in the ancient Renaissance, complicated drawings were created, including Leonardo da Vinci's drawing. Modern engineering drawing, including its specific orthographic projection with scale conventions, began in Europe (France) during the early stages of Industrialization. L.T. C. Rolt also made some of Marc's drawings for its block-making machinery (in 1799) that also may have contributed significantly to British engineering technology. Since he learned the art of presenting three-dimensional(3D) items in a two-dimensional(2D) plane, as we now term mechanical drawing. 

Question

hi can you please answer question 2.2 fully?

please see image

9:47 1
Oleksandr
03/08/2021, 4:52 p.m.
Problems
2.1 (A). A power transmission cable consists of ten copper wires each of 1.6 mm diameter surrounding three steel
wires each of 3 mm diameter. Determine the combined E for the compound cable and hence determine the extension
of a 30 m length of the cable when it is being laid with a tension of 2 kN.
For steel, E = 200 GN/m2; for copper, E = 100 GN/m2.
[151.3 GN/m2; 9.6 mm.]
2.2 (A). If the maximum stress allowed in the copper of the cable of problem 2.1 is 60 MN/m?, determine the
maximum tension which the cable can support.
[3.75 kN.)
3.44p 7 x 10-°x 30 x 200 x 109
200 x 10°

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