Coulomb Constant
coulomb is Coulomb’s constant, used in electrostatic force and potential formulas.
Electrostatic scale
Use it with elementaryCharge and electricConstant. Distances must be in metres and charges in coulombs for SI results.
coulomb
Coulomb's constant
Try it yourself:
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coulomb
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Use Coulomb in a calculation
Enter coulomb on a calculator line to see its built-in value, or place the name inside a longer expression. Keep any displayed unit attached when converting or combining physical quantities, and check that every other value uses a compatible dimension.
The example above is editable, so you can replace surrounding values and test the constant in your own formula. Browse all constants to compare related values and notation.