consider a portable electric blanket that runs on a 4,5 V battery. ıf you use copper wire with a 0,75 mm diameteras the heating element, how long should the wire be (in units of meters) if you want to generate 20 W of heating power ?(take the resistivity of the copper wire as p = 1,7 * 10-8 ohm*m) Physics II (CRN: 50010)Consider a portable electric blanket that runs on a 4.5 V battery, If you use copper wire with a 0.75 mm diameter as the heating element, how long should the wire be (in units of meters) if you want to generate20 W of heating power?(Take the resistivity of the copper wire as p = 1.7 x 10 - m.)Answer.Finish attempt-

The resistance of the wire can be obtained as P=V2RR=V2P=4.5V220W=1.0125Ω

Answered: consider a portable electric blanket…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 66AP: When a straight wire is heated, its resistance changes according to the equation R = R0 [1 + (T ...

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consider a portable electric blanket that runs on a 4,5 V battery. ıf you use copper wire with a 0,75 mm diameteras the heating element, how long should the wire be (in units of meters) if you want to generate 20 W of heating power ?(take the resistivity of the copper wire as p = 1,7 * 10-8 ohm*m)

Physics II (CRN: 50010)
Consider a portable electric blanket that runs on a 4.5 V battery, If you use copper wire with a 0.75 mm diameter as the heating element, how long should the wire be (in units of meters) if you want to generate
20 W of heating power?
(Take the resistivity of the copper wire as p = 1.7 x 10 - m.)
Answer.
Finish attempt-

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