Copper and aluminium have a resistivity of respectively 1.68*108 Om and 2.65*10 Qm. We have to...
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Copper and aluminium have a resistivity of respectively 1.68*108 Om and 2.65*10 Qm. We have to construct two cables, one with a copper conductor and one with aluminium conductor. What have to be the ratio between the diameter of the aluminium cable and the diameter of the copper cable for the cables to have the same resistance R pr. unit of length? Answer alternatives: a) 0.89 b) 1.00 c) 1.11 d) 1.26 Copper and aluminium have a resistivity of respectively 1.68*108 Om and 2.65*10 Qm. We have to construct two cables, one with a copper conductor and one with aluminium conductor. What have to be the ratio between the diameter of the aluminium cable and the diameter of the copper cable for the cables to have the same resistance R pr. unit of length? Answer alternatives: a) 0.89 b) 1.00 c) 1.11 d) 1.26
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Data Analysis and Decision Making
ISBN: 9780538476126
4th edition
Authors: Christian Albright, Wayne Winston, Christopher Zappe
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