Statcoulomb: Difference between revisions
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In [[physics]], a '''statcoulomb''' (statC), formerly known as '''esu''', is the unit of electric charge in the cgs-esu (centimeter-gram-second electrostatic system) of units. A point charge has magnitude one statcoulomb, if it repels a point charge of equal magnitude at a distance of 1 centimeter with a force of one dyne. | In [[physics]], a '''statcoulomb''' (statC), formerly known as '''esu''', is the unit of electric charge in the cgs-esu (centimeter-gram-second electrostatic system) of units. A point charge has magnitude one statcoulomb, if it repels a point charge of equal magnitude at a distance of 1 centimeter with a force of one dyne. | ||
:1 statC = 10/''c'' C, | |||
where C ([[coulomb]]) is the [[SI]] unit of charge and ''c'' is the cgs speed of light (''c'' ≈ 3⋅10<sup>10</sup> cm/s). | |||
Revision as of 10:29, 21 June 2008
In physics, a statcoulomb (statC), formerly known as esu, is the unit of electric charge in the cgs-esu (centimeter-gram-second electrostatic system) of units. A point charge has magnitude one statcoulomb, if it repels a point charge of equal magnitude at a distance of 1 centimeter with a force of one dyne.
- 1 statC = 10/c C,
where C (coulomb) is the SI unit of charge and c is the cgs speed of light (c ≈ 3⋅1010 cm/s).