2 power cord wire is made with 2 metal type the first line with resistance to second-line is only 3. If the length and resistance are equal. Area ratio of paths cut sector, one of which is the second line:
2 pieces of metal wires of the first 2 to 3 times the resistance of the second line. If the length and resistance as well. Ratio of the cross section of the line, the second one is the one.
Wire line 2 metal 2 type. The first line from the resistance is 3 times of the second line. If the length and resistance rate. Area ratio of cross section of first line on the second line is any?