Don't try to apply Ohm's law to readjust cable specs. As everyone else has pointed out. Current is current you can never exceed this amount in the wire.
If somehow you are thinking Ohm's Law allows you to varying the rating you are confused here. If it's rated for 10A at 120VAC then you cannot just run it at 5A at 240VAC. Although you staisfied Ohm's Law (double the voltage gives you half the current) you have exceed the insulation voltage rating.
What guage (diameter of the metal conductor)is this wire.....???
RSlater,
RSmike
