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28 Dec 2020

What is the drift velocity of electrons in a copper wire of cross-sectional area when a 3A is flowing through it?  

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Electricity and Magnetism
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Understanding Ohm's Law & Current electricity
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Ankit Lal
Ankit LalLv10
28 Dec 2020

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A copper wire of cross-sectional area carries a constant current of 5A. The density of free electrons is electrons per cubic meter. Find the current density and drift velocity of electrons in copper wire. Also, find the electric field and potential difference between two points 100cm apart.

A current of I=8.0A is flowing in a typical extension cord of length L=3.00m. The cord is made of copper wire with diameter d=1.5mm. The charge of the electron is e=1.6Ɨ10āˆ’19C. The mass of the electron is me=9.1Ɨ10āˆ’31kg. The resisitivity of copper is Ļ=1.7Ɨ10āˆ’8Ī©ā‹…m. The concentration of free electrons in copper is n=8.5Ɨ1028māˆ’3. Find the drift velocity vd of the electrons in the wire.

25.4. An 18-gauge copper wire (diameter 1.02 mm) carries a current with a current density of 3.20 X 100 A/m2. The density of free electrons for copper is 8.5 X 10% electrons per cubic meter. Calculate (a) the current in the wire and (b) the drift velocity of electrons in the wire.

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