consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.5 mm diameter as the heating element, how long should the wire (in units of meters) if you want to generate 20W of heating power? (Take the resistivity of the copper wire as p=1.7x 10^-8 ohm.m)
consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.5 mm diameter as the heating element, how long should the wire (in units of meters) if you want to generate 20W of heating power? (Take the resistivity of the copper wire as p=1.7x 10^-8 ohm.m)
Chapter9: Optics
Section: Chapter Questions
Problem 25Q
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consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.5 mm diameter as the heating element, how long should the wire (in units of meters) if you want to generate 20W of heating power? (Take the resistivity of the copper wire as p=1.7x 10^-8 ohm.m)
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