An iron wire with cross-section 2.1 x 10 ºm² carries current 149 A. Find the drift velocity Va, in units of milimeters per second by assuming the existence of two carriers per iron atom.

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An iron wire with cross-section 2.1 x 10°m² carries current 149 A. Find the drift velocity Va, in units of milimeters per second,
by assuming the existence of two carriers per iron atom.
Hint: First, calculate number density n of the charge carriers.
Answer:
Transcribed Image Text:An iron wire with cross-section 2.1 x 10°m² carries current 149 A. Find the drift velocity Va, in units of milimeters per second, by assuming the existence of two carriers per iron atom. Hint: First, calculate number density n of the charge carriers. Answer:
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