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A current density of 100,000 A/cm2 flows through a sodium wire 85 m in length. The resistance of the wire is found to be 7

A current density of 100,000 A/cm2 flows through a sodium wire 85 m in length. The resistance of the wire is found to be 7 ohm. Calculate the diameter of the wire (in cm) and the voltage applied to the wire (in V).

Diameter=

voltage=

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