Coulomb: Difference between revisions
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<onlyinclude>The coulomb, also written as its abbreviation 'C', is the [[SI]] unit for [[electricity|electric]] charge. One coulomb is equal to the amount of [[charge]] from a [[current]] of one [[ampere]] flowing for one [[second]]</onlyinclude>. | <onlyinclude>The coulomb, also written as its abbreviation 'C', is the [[SI]] unit for [[electricity|electric]] charge. One coulomb is equal to the amount of [[charge]] from a [[current]] of one [[ampere]] flowing for one [[second]]</onlyinclude>. | ||
One coulomb is equal to the charge on 6.241 x 10<sup>18</sup> protons. The charge on 1 proton is 1.6 x 10<sup>-19</sup> C. Conversely, the charge of an electron is -1.6 x 10<sup>19</sup> C. | One coulomb is equal to the charge on 6.241 x 10<sup>18</sup> protons. The charge on 1 proton is 1.6 x 10<sup>-19</sup> C. Conversely, the charge of an electron is -1.6 x 10<sup>-19</sup> C. | ||
A coulomb is an enormous charge - two 1 C charges that are 1 m apart exert a [[force]] of 9 x 10<sup>9</sup> [[newton]]s (see [[Coulomb's law]]). That's over two million [[tonne]]s, ~720x as much as the thrust of a space shuttle solid rocket booster during liftoff.<ref>http://www.wolframalpha.com/input/?i=newtons+to+pounds&f1=8.99E9&f=UnitsConversion2.fromValue_8.99E9</ref> | A coulomb is an enormous charge - two 1 C charges that are 1 m apart exert a [[force]] of 9 x 10<sup>9</sup> [[newton]]s (see [[Coulomb's law]]). That's over two million [[tonne]]s, ~720x as much as the thrust of a space shuttle solid rocket booster during liftoff.<ref>http://www.wolframalpha.com/input/?i=newtons+to+pounds&f1=8.99E9&f=UnitsConversion2.fromValue_8.99E9</ref> | ||
Latest revision as of 17:41, 10 July 2019
The coulomb, also written as its abbreviation 'C', is the SI unit for electric charge. One coulomb is equal to the amount of charge from a current of one ampere flowing for one second.
One coulomb is equal to the charge on 6.241 x 1018 protons. The charge on 1 proton is 1.6 x 10-19 C. Conversely, the charge of an electron is -1.6 x 10-19 C.
A coulomb is an enormous charge - two 1 C charges that are 1 m apart exert a force of 9 x 109 newtons (see Coulomb's law). That's over two million tonnes, ~720x as much as the thrust of a space shuttle solid rocket booster during liftoff.[1]
To learn more about the coulomb, click here.
For Further Reading
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- Electric charge
- Electric field
- Electromagnetic force
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