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hellchicken hellchicken
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8 months ago

A wire of radius 0.15 mm is made of an unknown metal and carries a current of 8.4 mA. The drift velocity for electrons in the wire is measured to be 36 × 10−6 m/s. What is the charge carrier density of the metal from which the wire is made?



▸

1.3 × 1029 m−3



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2.1 × 1028 m−3



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need more information to do this calculation.



▸

4.2 × 1030 m−3

Textbook 
College Physics

College Physics


Edition: 5th
Author:
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kraftykrafty
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8 months ago
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