You want to design a portable electric blanket that runs on a 1.5-V battery. If you use
Chapter 18, Problem 18.43(choose chapter or problem)
You want to design a portable electric blanket that runs on a 1.5-V battery. If you use a 0.50-mm-diameter copper wire as the heating element, how long should the wire be if you want to generate 18 W of heating power? What happens if you accidentally connect the blanket to a 9.0-V battery?
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