The maximum safe current in a copper wire with a diameter

Reference no: EM13635604

The maximum safe current in a copper wire with a diameter of3.0 mm is about 20. amperes. In a STM, a current of 7.5x10-10 Apasses from the tip to the surface in a filament of diameter appox1.5 nm. Compare the current density in the copper wire with that inthe STM (scanning tunneling microscope).

Reference no: EM13635604

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