Calculating Electron Flow in a Copper Wire

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SUMMARY

The discussion centers on calculating the average number of electrons flowing through a copper wire with a 5 mm diameter and a length of 10 m, carrying a current of 6 A. The solution utilizes the relationship I = Q/t, where I represents current, Q is charge, and t is time. The calculation reveals that approximately 3.744 x 1019 electrons flow through the wire per second. The diameter and length of the wire are deemed unnecessary for this specific calculation.

PREREQUISITES
  • Understanding of electric current and charge (Coulombs)
  • Familiarity with the equation I = Q/t
  • Basic knowledge of electron charge (1 Coulomb = 6.24 x 1018 electrons)
  • Concept of flow rate in electrical circuits
NEXT STEPS
  • Study the relationship between current and charge in electrical circuits
  • Learn about the properties of copper as a conductor
  • Explore the concept of electron mobility in conductive materials
  • Investigate the impact of wire diameter on electrical resistance
USEFUL FOR

Students studying physics, electrical engineering students, and anyone interested in understanding electric current and electron flow in conductive materials.

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Homework Statement



An electric current of 6 A flows through a 5 mm diameter copper wire with a length of 10 m.
What is the average number of electrons that flow through a cross section of the wire per second?

Homework Equations



I=Q/t or I=dQ/dt Maybe, I am not sure

The Attempt at a Solution


1 Coulomb = 6.24e18
6*6.24e18
3.744E19 e/s
 
Last edited:
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nvm i figured it out thanks anyway!
 
Weird as the diameter and length are unnecessary. But thumbs up for solving it!
 

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