Number of electrons per cubic metre

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    Cubic Electrons Per
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SUMMARY

The discussion centers on the relationship between wire stretching and electron density. When a wire is stretched while maintaining its cross-sectional area, the total number of electrons remains constant, but the volume increases. Consequently, the electron density, defined as the number of electrons per cubic metre, decreases. This conclusion is based on the principle that stretching the wire increases its length without altering its diameter, thereby reducing the density of electrons within a given volume.

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  • Understanding of basic electrical concepts, including electron behavior.
  • Familiarity with material properties, specifically density and volume.
  • Knowledge of wire properties, including cross-sectional area and length.
  • Basic principles of physics related to stretching materials.
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Forest1239879
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If you stretch a wire, increasing its length will the number of electrons per cubic metre decrease? Assuming the Cross sectional area stays the same. The number of electrons will surely stay the same, and won't increase just by you stretching it, and the number of cubic metres has increased, so n (electrons per cubic metre) will decrease?
 
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If you stretch it without changing the diameter then you must be decreasing the density.
So the amount of metal and so the amount of electrons in a cc in the middle must decrease.
 

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