13 (b) Pylon wires, which carry electricity, are made of metal.
pylon wires
Aluminium, copper and silver are all possible choices for the metal. (i)
Evaluate each of these three metals for use in making pylon wires. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ...................................................................................................................................... [3]
(ii)
Which one would be the best choice for making pylon wires? ...................................................................................................................................... [1] [Total: 7]
Š OCR 2013
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