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I want to know, how do you calculate the resistance of a copper wire with a length of 0.35 meters (1.148 feet) long with a diameter of 0.8118 mm (20 AWG). I found that the resistance of a copper wire in one foot is 98.496 [tex]\omega[\tex] and will be two 1.5V AA battery, so the current running through the wire is going to be approximately 0.031 amps. If If want to connect a switch to the wire, what should be the requirements for the switch or any other electrical devices?
Here is where I got the resistance for the wire with a 20 AWG gage.
http://www.eskimo.com/~billb/tesla/wire1.txt
Here is where I got the resistance for the wire with a 20 AWG gage.
http://www.eskimo.com/~billb/tesla/wire1.txt