As compared to copper, the conductivity of aluminium is nearly

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• As compared to copper, the conductivity of aluminium is nearly
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• The voltage of a 2 wire de system is raised from 200 V to 400 V. For the same power transmitted over the same distance and for the same power loss, the saving in conductor copper will be
• The specific gravity of copper is
• The voltage of a 2 wire de system is raised from 200 V to 400 V. For the same power transmitted over the same distance and for the same power loss, the saving in conductor copper will be
• The specific gravity of copper is