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electronvolt |
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electronvolt a unit of energy equal to the work done on an electron accelerated through a potential difference of 1 volt. 1 electronvolt is equivalent to 1.602 × 10--19 joule. Electronvolt A unit of energy used for convenience in atomic systems. Specifically, it is the change in energy of an electron, or of any particle having a charge numerically equal to that of an electron, when it is moved through a difference of potential of 1 mks volt. Its value (in mks units) is obtained from the equation W = qV, where W is energy in joules, q the charge in coulombs, and V the potential difference in volts. For a potential difference of 1 volt and the electronic charge of 1.602 × 10-19 coulomb, the electronvolt is 1.602 × 10-19 joule. See Electron, Ionization potential How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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77 gigaelectronvolts to enable them to penetrate the screen without creating other particles. For more than 6 years, the LEP collider operated at an energy of about 91 gigaelectronvolts (GeV) to produce electron-positron collisions of just the right energy to create large numbers of Z#161# particles. These particles are accelerated in stages to an energy of 7 gigaelectronvolts, then injected into a storage ring about 1 kilometer in circumference-large enough to encircle a baseball stadium. |
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