The resistance of a 100m length of copper conductor 1mm diameter, is 2.47Ω. Calculate the resistance of a cable 800m in length composed of 19 similar strands of conductor, but each 1.5mm diameter. Allow 5 per cent increase in length for the ‘lay’ (twist) of each strand of the completed cable.

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The resistance of a 100m length of copper conductor 1mm diameter, is 2.47Ω. Calculate the resistance of a cable 800m in length composed of 19 similar strands of conductor, but each 1.5mm diameter. Allow 5 per cent increase in length for the ‘lay’ (twist) of each strand of the completed cable.

Home/ College/The resistance of a 100m length of copper conductor 1mm diameter, is 2.47Ω. Calculate the resistance of a cable 800m in length composed of 19 similar strands of conductor, but each 1.5mm diameter. Allow 5 per cent increase in length for the ‘lay’ (twist) of each strand of the completed cable.