If a horizontal rotating field B 1 , angular frequency of rotation ω ω 1 is applied in the region between poles of magnet 2, produced by oscillating current in circular coils then there is a probability for the atoms passing through there from one spin state to another ( S z = + ℏ ℏ / 2 − − > − − ℏ ℏ / 2 and vice versa), when ω ω 1 = ω ω p , Larmor frequency of precession of magnetic moment in B. The atoms that transition from 'upward' to 'downward' spin will experience a downward force while passing through magnet 3, and will follow path 1'. Similarly, atoms that change from 'downward' to 'upward' spin will follow path 2', and these atoms will not reach the detector, causing a minimum in detector count. If angular frequency ω ω 1 of B 1 is varied continuously, then a minimum in detector current will be obtained (when ω ω 1 = ω ω p ). From this known value of ω ω 1 ( = g e B / 2 ℏ ℏ , where g is ' Land é g factor '), 'Landé g-factor' is obtained which will enable one to have correct value of magnetic moment μ μ ( = g q ℏ ℏ / 4 m ) . This experiment, performed by Isidor Isaac Rabi is more sensitive and accurate compared than Stern-Gerlach.