# Questions on electromagnetism

I would like to know if this formula to convert a magnet's pulling force(lbs) to kGs is correct and reliable. I got it off this website http://www.trentatron.com/landing.htm

Pull Force = 0.576 x Br² x (Th) x √‾A where
Br = Flux Rating in KiloGauss
Th = Thickness of Magnetized Surfaces in inches
A = Surface Area (L x W) in inches

Following that, is there a way to calculate the magnetic field strength between 2 magnets of opp. polarity based on the distance between them?
Like for example:
The stated magnetic field strength of both of the magnet's are 3.3 Teslas.
They're 1.6" apart.
So how do I calculate the magnetic field strength between them?

Last of all. which of the 2 scenarios will generate a larger EMF?
1) The sides of the magnet's magnetic field are cut by a coil of Copper wire. [Like how a Faraday(Shaking)Flashlight works.]
2) The magnetic field between 2 opp. polarity magnet's are cut by a coil of Copper wire.
*The magnets, No. of turns of the coil, and the speed of which the magnetic fields are being cut in both scenarios are all the same.*