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6, A copper wire has diameter 0.5 mm and resistivity of 1.6 x 10-8 Ω will be the length of this wire to make its resistance 10 Ω ? How much docs theQ.-m. What resistance change if the diameter is doubled ? |
| Answer» 6, A copper wire has diameter 0.5 mm and resistivity of 1.6 x 10-8 Ω will be the length of this wire to make its resistance 10 Ω ? How much docs theQ.-m. What resistance change if the diameter is doubled ? | |