Physics, 22.02.2020 01:40, larry5007

A wire must be replaced in a circuit by a new wire of the same material but nine times longer. If the new wire's resistance is the same as the original wire's, what is the diameter of the new wire?

O the same as the original diameter
O one half the original diameter
O one third the original diameter
O three times the original diameter
O nine times the original diameter

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A wire must be replaced in a circuit by a new wire of the same material but nine times longer. If th...