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10 Nov 2019
Five cylindrical wires are made of the same material. Their lengths and radii are wire 1: length I, radius r wire 2: length 3l/2, radius r/2 wire 3: length 1/2, radius r/2 wire 4: length I, radius r/2 wire 5: length 2l, radius r/2 Rank the wires according to their resistances, least to greatest. 1, 2, 4, 3, 5 1 and 2 tie, then 5, 3, 4 1, 2, 3, 4, 5 1, 3, 4, 2, 5 5, 4, 3, 2, 1
Five cylindrical wires are made of the same material. Their lengths and radii are wire 1: length I, radius r wire 2: length 3l/2, radius r/2 wire 3: length 1/2, radius r/2 wire 4: length I, radius r/2 wire 5: length 2l, radius r/2 Rank the wires according to their resistances, least to greatest. 1, 2, 4, 3, 5 1 and 2 tie, then 5, 3, 4 1, 2, 3, 4, 5 1, 3, 4, 2, 5 5, 4, 3, 2, 1
Elin HesselLv2
7 Apr 2019