The electrical resistance of a piece of wire is inversely proportional to the cross-sectional area. When the cross-sectional area is 5 mm² its resistance is 7.02 Ohms. Compute the resistance when the cross-sectional area is 9 mm².
The electrical resistance of a piece of wire is inversely proportional to the cross-sectional area. When the cross-sectional area is 5 mm² its resistance is 7.02 Ohms. Compute the resistance when the cross-sectional area is 9 mm².
Chapter3: Polynomial Functions
Section3.5: Mathematical Modeling And Variation
Problem 6ECP: The resistance of a copper wire carrying an electrical current is directly proportional to its...
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