Convert Electron radius (classical) to arpent Online | Free Length Converter

Classical Electron Radius

The classical electron radius is a theoretical length scale associated with the electron, derived from classical electromagnetism. It represents the size of a hypothetical sphere where the electron’s electrostatic energy equals its rest mass energy.

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  Its value is approximately 2.818 × 10⁻¹⁵ meters (about 2.8 femtometers).

  
  
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  Calculated using fundamental constants: the electron charge, mass, and the speed of light.

  
  
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  It is not the actual physical size of the electron (which is considered point-like in quantum mechanics), but a useful scale in classical physics.

  
  
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  Used in scattering theory and classical electron models.

  
  

Key facts:

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  Classical electron radius ≈ 2.818 × 10⁻¹⁵ m

  
  
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  Represents an electromagnetic length scale, not a physical size

  
  
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  Important in classical models of electron behavior

  
  

This radius helps bridge classical and quantum views of particle physics.

Arpent

An arpent is a traditional unit of length and area used primarily in French-speaking regions, especially in parts of Canada (like Quebec) and Louisiana in the United States. It originated in France and was commonly used in land measurement and agriculture.

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  As a length, one arpent is approximately 192 feet (about 58.47 meters), though it varies regionally.

  
  
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  As an area, an arpent is roughly equal to 0.84 acres or about 3,400 square meters.

  
  

The arpent was important for defining land parcels during French colonial times and is still referenced in legal land descriptions in some areas today.

Summary:

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  Length: ~192 feet (58.47 meters)

  
  
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  Area: ~0.84 acres (3,400 m²)

  
  
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  Used historically in French-influenced regions for land measurement

  
  
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  Still appears in land records and legal contexts in parts of North America