EMF - Used when something really freaky happens. Created by two really bored friends when one of them possibly electrocuted their foot.
by EMF Creator April 18, 2009
An Idiotic band formed in the 80s who actually wrote an 80s pop/ rock classic...
That most of you will recognise as "You're unbelievable"
Awesome song yes...
EMF apparently, originally stood for Ecstasy mofos =P
That most of you will recognise as "You're unbelievable"
Awesome song yes...
EMF apparently, originally stood for Ecstasy mofos =P
by _Spazzum_ August 17, 2006
The counter-electromotive force (abbreviated counter emf, or CEMF ) 1 is the voltage, or electromotive force, that pushes against the current which induces it, is caused by a changing electromagnetic field. It's represented by Lenz's Law of electromagnetism. Back electromotive force is a voltage that occurs in electric motors where there is relative motion between the armature of the motor and the external magnetic field. Counter emf is a voltage developed in an inductor network by a pulsating current or an alternating current. 2 The voltage's polarity is at every moment the reverse of the input voltage 3 4
In a generator using a rotating armature and, in the presence of a magnetic flux, the conductors cut the magnetic field lines as they rotate. The changing field strength produces a voltage in the coil; the motor is acting like a generator.. (Faraday's law of induction.) This voltage opposes the original applied voltage; therefore, it is called "counter-electromotive force". (by Lenz's law.) With a lower overall voltage across the armature, the current flowing into the motor coils is reduced. 5
In a generator using a rotating armature and, in the presence of a magnetic flux, the conductors cut the magnetic field lines as they rotate. The changing field strength produces a voltage in the coil; the motor is acting like a generator.. (Faraday's law of induction.) This voltage opposes the original applied voltage; therefore, it is called "counter-electromotive force". (by Lenz's law.) With a lower overall voltage across the armature, the current flowing into the motor coils is reduced. 5
Pretty self explanatory dont you think, i added this as the previous entry was rubbish and he's obviously visited an engineer who doesn't know what back EMF is.
by Nicker doodle doo May 14, 2007
A phrase a technician uses when he hasn't a clue what's wrong and he doesn't want to be seen not to know what's wrong, so he talks shit!
by Gav September 9, 2003
EMF(Epicly Major Fail) Detector: A warning device which detects Epicly Major Fails of magnitude 2 or greater. Can normally detect EMF's minutes to hours before the initial hit of the EMF. Used mainly to alert the surrounding area of an impending EMF so they may all witness it.
*SIREN*
Person 1: "Ohh dude that's the EMF Detector!".
Person 2: "Well lets go see who screwed the pooch this time, then we can laugh and ridicule them all day!"
Person 1: "Yeah lets go!"
Person 1: "Ohh dude that's the EMF Detector!".
Person 2: "Well lets go see who screwed the pooch this time, then we can laugh and ridicule them all day!"
Person 1: "Yeah lets go!"
by TehTub January 5, 2010