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.
Chapter27: Service-entrance Equipment
Section: Chapter Questions
Problem 44R
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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.
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