The masses of the three wires of copper are in the ratio 1:3:5` and their lengths are in the ratio `5:3:1`. The ratio of their electrical resistances is
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The masses of the three wires of copper are in the ratio 1:3:5` and their lengths are in the ratio `5:3:1`. The ratio of their electrical resistances is The masses of the three wires of copper are in the ratio 1:3:5` and their lengths are in the ratio `5:3:1`. The ratio of their electrical resistances [...]