Consider a portable electric blanket that runs on a 3 V battery. If you use copper wire with a 0.25 mm diameter as the heating element, how long should the wire be (in units of meters) if you want to generate 10 W of heating power? (Take the resistivity of the copper wire as p= 1.7 × 10–8N- m.) Answer:

Consider a portable electric blanket that runs on a 3 V battery. If you use copper wire with a 0.25 mm diameter as the heating element, how long should the wire be (in units of meters) if you want to generate 10 W of heating power? (Take the resistivity of the copper wire as p= 1.7 × 10–8N- m.) Answer:

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 57PQ

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