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

Mile

A mile is a unit of length commonly used in the United States and the United Kingdom to measure long distances. One mile equals 5,280 feet or about 1.609 kilometers. Miles are often used to measure distances between cities, in running races like the mile run, or for driving distances shown on road signs. The abbreviation for mile is "mi". Although many countries use the metric system with kilometers, miles remain popular in some places for everyday distance measurements and travel.

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.