Wires aren’t really ideal. The voltage drop across a current-carrying wire can be significant unless the resistance of the wire is quite low. Suppose a 80ftextension cord is being used to provide power to an electric lawn mower. The cord carries a 15Acurrent. The copper wire in a typical extension cord has a 1.3 mm diameter. What is the voltage drop across a 80ft length of wire at this current?
How participants can be assigned to groups so you employ counterbalancing
March 12, 2015
12:30 pm
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