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An extension cord is used with an electric weed trimmer that has a resistance of 16.7Ω. The extension cord is made of co
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An extension cord is used with an electric weed trimmer that has a resistance of 16.7Ω. The extension cord is made of co
An extension cord is used with an electric weed trimmer that has a resistance of 16.7Ω. The extension cord is made of copper (resistivity 1.72×10−8ohmm ) wire that has a cross-sectional area of 1.13×10−6 m2. The combined length of the two wires in the extension cord is 94.9 m. (a) Determine the resistance of the extension cord. (b) The extension cord is plugged into a 120−V socket. What voltage is applied to the trimmer itself? (a) Number Units (b) Number Units
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