Physics Practice Problems Microscopic View of Current Practice Problems Solution: The electron density in iron is 1.7x1029 electrons...

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Solution: The electron density in iron is 1.7x1029 electrons/m3. When a 2.0 A current is present in a cylindrical iron wire with a cross-sectional radius of 2 mm, what is the electron's drift speed?

Problem

The electron density in iron is 1.7x1029 electrons/m3. When a 2.0 A current is present in a cylindrical iron wire with a cross-sectional radius of 2 mm, what is the electron's drift speed?