The resistance R of a wire of fixed length is related to its diameter x by an
Question:
The resistance R of a wire of fixed length is related to its diameter x by an inverse square law, that is, by a function of the form R(ϰ) − kϰ-2.
(a) A wire of fixed length and 0.005 meters in diameter has a resistance of 140 ohms. Find the value of k.
(b) Find the resistance of a wire made of the same material and of the same length as the wire in part (a) but with a diameter of 0.008 meters.
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a Rx kx 2 and R 0005 140 so 14...View the full answer
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Related Book For 
Calculus Early Transcendentals
ISBN: 9781337613927
9th Edition
Authors: James Stewart, Daniel K. Clegg, Saleem Watson, Lothar Redlin
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