The wire of our appliances are insulated with a material mixed with rubber, which has a very high resistivity. If a certain wire has a length of 2.5 m, the outer diameter is 5 mm and its inner diameter is 0.5 mm, what is its resistance? Note that the inner diameter is present to leave a hollow place where the conducting wire (usually copper) is present.

The wire of our appliances are insulated with a material mixed with rubber, which has a very high resistivity. If a certain wire has a length of 2.5 m, the outer diameter is 5 mm and its inner diameter is 0.5 mm, what is its resistance? Note that the inner diameter is present to leave a hollow place where the conducting wire (usually copper) is present.

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter27: Service-entrance Equipment

Section: Chapter Questions

Problem 44R

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