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  1. Understanding Coulomb's Constant: Explained for Beginners

    Feb 23, 2012 · The discussion revolves around understanding Coulomb's constant (k_e) in Coulomb's law, focusing on its necessity, physical meaning, and measurement methods. Participants explore …

  2. How Can You Determine Coulomb's Constant from a Force vs. Distance ...

    Jul 18, 2011 · The discussion revolves around determining Coulomb's constant using a force versus separation distance graph, specifically applying the relationship defined by Coulomb's law. …

  3. Where Does the 4π in Coulomb's Constant Come From?

    Jul 8, 2010 · The discussion centers around the origin of the factor of 4π in Coulomb's constant as presented in Coulomb's law. Participants explore its implications in different unit systems, its …

  4. Where did the electric constant came from? • Physics Forums

    Dec 20, 2009 · The discussion revolves around the origins and implications of the electric constant, epsilon zero (ε₀), particularly its role in Coulomb's Law and its relationship with unit systems in …

  5. Why is Coulombs Constant Written as 1/ (4*pi*epsilon0)?

    Jun 4, 2010 · The discussion focuses on the expression of Coulomb's constant in the form of 1/ (4*pi*epsilon0) rather than as a direct numerical value like 9*10^9. Participants explore the …

  6. Coulomb Law: What Does k Mean & Why Is 4π Used? - Physics Forums

    Oct 6, 2013 · Coulomb's Law is expressed as F = k * (q1 * q2) / r², where k is defined as 1/ (4π*ε). The constant 4π is significant as it represents the surface area of a unit sphere, which is essential in the …

  7. What Are the Correct Units of Coulomb's Constant?

    Dec 17, 2011 · The discussion revolves around the units of Coulomb's constant as it relates to Coulomb's Law and the permittivity of free space, ε0. Participants are exploring the dimensional …

  8. Coulomb's Law: Meaning and Origin of 4*pi • Physics Forums

    Dec 27, 2007 · Can anyone tell me where the 4*pi comes from in coulomb's law? I know the law is often compared to netwon's law of gravity, but there is no 4*pi in that one. What is the meaning of 4*pi in …

  9. Dimensions of K (the constant in Coulomb's Law) - Physics Forums

    Apr 1, 2005 · The discussion centers on the dimensions of the constant K in Coulomb's Law, exploring its representation in different unit systems, particularly MKS and CGS. Participants delve into the …

  10. Unraveling the Mystery of 4π in Coulomb's Law - Physics Forums

    Feb 3, 2010 · The result is of course Coulomb's law and once again due to the spherical geometry we acquire the 4\pi factor. But since Coulomb's law is incorporated into Maxwell's Equations, we can …