Some quantities are known as several different names such as the magnetic " B-field " which known as the " magnetic flux density ", the " magnetic induction " or simply as the " magnetic field " depending on the context.
32.
According to the system of Gaussian units ( cgs ), the gauss is the unit of magnetic flux density "'B "'and the equivalent of tesla is equal to 10 4 gauss, and one ampere per meter is equal to 45��??10 " 3 oersted.
33.
In the " microscopic " version of Maxwell's equations, this definition must be replaced by a definition in terms of the electric field "'E "'and the magnetic flux density "'B "'( it is described later in the article ).
34.
Any conductor of finite dimensions has inductance; the inductance is made larger by the multiple turns in an electromagnetic coil . emf \ scriptstyle { \ mathcal { E } } ( voltage opposing current ) due to a rate-of-change of magnetic flux density \ scriptstyle { B } through a current loop.
35.
Very strong fluctuating " transcranial magnetic stimulation " ( ie; a magnetic field through the head ) can cause brain cells to start firing without any stimulus, but I doubt iPod headphones could generate the kind of frequency or magnetic flux density required to produce a La�ka 12 : 47, 13 April 2007 ( UTC)
36.
By Amp�re's law, we know that the line integral of "'B "'( the magnetic flux density vector ) around this loop is zero, since it encloses no electrical currents ( it can be also assumed that the circuital electric field passing through the loop is constant under such conditions : a constant or constantly changing current through the solenoid ).
37.
The interaction of said conductive body with extrinsically sourced magnetic flux density ( B ) occurs instantaneously as said conductive body incessantly moves at inertial or constant velocity motion ( V ); prominently a celestial velocity such as Earth orbital or rotational velocity, the velocity of the Solar System or star cluster & etc . Newton s laws of motion notably do not distinguish a differential in law for celestial and terrestrial motion.
38.
If the flux in the core is purely sinusoidal, the relationship for either winding between its "'rms voltage " "'E " rms of the winding, and the supply frequency " f ", number of turns " N ", core cross-sectional area " a " in m 2 and peak magnetic flux density " B " peak in Wb / m 2 or T ( tesla ) is given by the universal EMF equation:
39.
For example, PRML would read the magnetic flux density pattern " 70, 60, 55, 60, 70 " ( where 60 is the baseline signal ) as binary " 101 ", and the same for " 45, 40, 30, 40, 45 " ( baseline of 40 ), whereas a peak detector would decode everything above 50 ( for example ) as high, and below 50 as low, so the first pattern would read " 111 " and the second as " 000 ".
