| FGD | Focus Group Discussions |
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| faraday | <chemistry> A constant representing the charge on one mole of electrons, 96,500 coulombs. (09 Jan 1998) |
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| Faraday, Michael | <person> English physicist and chemist, 1791-1867. See: farad, faraday, Faraday's constant, Faraday's laws. (05 Mar 2000) |
| faraday rotator | <radiobiology> A device which rotates the plane of polarization of an optical-light pulse, typically by using a glass disc suitably doped with a magnetic ion and placed in a magnetic field. These devices are used to isolate (protect) a laser amplifier chain against back-reflection from the laser target, the Faraday rotator in this case gives a 90-degree phase change on the round trip, so that the returning light is rejected by a polarizer which transmits the outgoing light. Magnetised plasmas also display the Faraday rotation effect of light waves propagating along the magnetic field lines. (09 Oct 1997) |
| Faraday's laws | The amount of an electrolyte decomposed by an electric current is proportional to the amount of the current, when the same current is passed through several electrolytes, the amounts of the different substances decomposed are proportional to their chemical equivalents. (05 Mar 2000) |
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