1.

A chunk of copper weighing 1 kg is drawn into a wire 1 mm2 thick. Another chunk of copper weighing 1 kg is drawn into a wire 2 mm2 thick. What is the ratio of their resistances?

Answer»

A chunk of copper weighing 1 kg is drawn into a wire 1 mm2 thick. Another chunk of copper weighing 1 kg is drawn into a wire 2 mm2 thick. What is the ratio of their resistances?




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