An extension cord is used with an electric weed trimmer that has a resistance of 15.0 .
Question:
An extension cord is used with an electric weed trimmer that has a resistance of 15.0 Ω. The extension cord is made of copper wire that has a cross-sectional area of 1.3 × 10-6 m2. The combined length of the two wires in the extension cord is 92 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?
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a The resistance of the extension cord is b The total resistance of the ...View the full answer
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