The size of conductor in power cables depends on _ _ _?
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current to be carried
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ANSWER:
The size of conductor in power cables depends on the current to be carried.
EXPLANATION:
The size of conductor in power cables depends on the current to be carried which in turn depends on the resistance of the wire and its radius. The resistance of the wire is inversely proportional to its radius' square.
It also depends on the voltage being applied across the ends of the wire. This is how it happens here.
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