Electron - Wikipedia, the free encyclopedia
An electron is a subatomic particle that carries a negative electric charge. It has no known substructure and is believed to be a point particle.
en.wikipedia.org/wiki/Electron
Elementary charge - Wikipedia, the free encyclopedia
The elementary charge , usually denoted e , is the electric charge carried by a single proton, or equivalently, the negative of the electric charge carried by a single electron. This is a fundamen...
en.wikipedia.org/wiki/Elementary_charge
Electrons have a "negative" (-) charge. Neutrons have no charge, they are neutral. The charge of one proton is equal in strength to the charge of one electron. When the number of protons in an atom equals the number of electrons, the atom itself has no overall charge, it is neutral.
www.sciencemadesimple.com/static.html
An electron (e-) has a negative (-1) charge. The electrostatic charge is -1.602 × 10-19 coulombs. A Proton has a positive charge, and a neutron has a neutral charge. One can tell by the etymology, which indicates that protons have a positiv...
http://wiki.answers.com/Q/Does_an_electron_have_a_charg...
Budget airline says customers can still make "fee-free" bookings by using prepay cards, but they attract fees themselves ... Ryanair will charge Visa Electron customers for using the card to make a booking. Photograph: David Sillito ... Budget airline Ryanair is starting to charge Visa Electron customers for using the card to book...
www.guardian.co.uk/money/2009/dec/01/ryanair-charge-vis... www.guardian.co.uk/money/2009/dec/01/ryanair-charge-visa-electron-users
In this experiment you will observe the behavior of electrons in a magnetic field and determine a value for the electron charge-to-mass ratio e/m. The apparatus consists of a large vacuum tube supported at the center of a pair of Helmholtz coils, as seen in the photograph of Fig.
www.middlebury.edu/~PHManual/eoverm.html
Probably everyone is familiar with the first three concepts, but what does it mean for charge to be quantized? Charge comes in multiples of an indivisible unit of charge, represented by the letter e. In other words, charge comes in multiples of the charge on the electron or the proton.
physics.bu.edu/~duffy/PY106/Charge.html physics.bu.edu/~duffy/PY106/Charge.html
Your job is to figure out how many Coulombs of charge are carried by each electron; or, in this particular experiment, by a positive charge equal in size to an electron's negative charge. The way to do it is to figure out two different things:
spiff.rit.edu/classes/phys377/lab1_extra.html
The charge to mass quotient represents the amount of charge per unit mass of electrons. Note that the charge on an electron is negative, and equal in magnitude to the elementary charge.
www.scenta.co.uk/tcaep/nonxml/science/constant/details/... www.scenta.co.uk/tcaep/nonxml/science/constant/details/ElectronChargeMassQuotient.htm
Britannica online encyclopedia article on electron charge (physics), (symbol e), fundamental physical constant expressing the naturally occurring unit of electric charge, equal to 1.6021892 × 10−19 coulomb, or 4.80325 × 10−10 electrostatic unit (esu, or statcoulomb). ... For a definition of "electron charge (physics)",
www.britannica.com/EBchecked/topic/183512/electron-char... www.britannica.com/EBchecked/topic/183512/electron-charge