NCERT Q6 - A copper wire has diameter 0.5 mm and resistivity of 1.6
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Q. A copper wire and steel wire of the same diameter and length are joined end to end and a force is applied which stretches their combined length by 1 cm. then
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The diameter of a copper wire is 2mm, if a steady current of 6.25 A is
PhysicsLAB: Resistance, Gauge, and Resistivity of Copper Wires