Understanding Resistance and Temperature Effects in Metal Wires

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SUMMARY

The discussion centers on the relationship between resistance and temperature in metal wires, explained through the Drude model. According to this model, resistance increases with temperature due to the increased vibration of positive charges within the metal, which impedes the flow of conductive electrons. The Drude model serves as a foundational theory for understanding conductivity without delving into quantum mechanics.

PREREQUISITES
  • Understanding of the Drude model of electrical conductivity
  • Basic knowledge of resistance and its dependence on temperature
  • Familiarity with conductive electrons and their behavior in metals
  • Awareness of thermal effects on material properties
NEXT STEPS
  • Research the mathematical equations associated with the Drude model
  • Explore the impact of temperature on resistance in various metals
  • Learn about quantum mechanical models of conductivity, such as the Sommerfeld model
  • Investigate practical applications of resistance and temperature effects in electrical engineering
USEFUL FOR

Students of physics, electrical engineers, and anyone interested in the fundamental principles of electrical conductivity and resistance in metals.

GumzyG
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Hi, can someone please explain to me what resistants is affected by in a wire and also what temperature has to do with it? :confused:

Thanks in advanced
 
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The model that is most often used to explain resistance and conductivity is called the Drude model. It's the best theory available that is totally free from quantum mechanics.

The most elementary explanation of conductivity according to the Drude model is that -charged point particles (conductive electrons) travel between +charges that make up the metal. The hotter the metal, the more the +charges take up space, because they vibrate more. Electrons thus have a harder time getting through between them -> resistance increases.

If you need more explanation, say the word, there are plenty of equations and precisions that go along with this.
 
Thanks a lot, you have helped me enough!
 

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