N equally spaced charges each of value q, are placed on a circle of radius R. The circle rotates about its axis with an angular velocity

N equally spaced charges each of value q, are placed on a circle of radius R. The circle rotates about its axis with an angular velocity as shown
in the figure  . A bigger Amperian loop B encloses the whole circle where as a smaller Amperian loop A encloses a small segment. The difference between enclosed currents, IA – IB , for the given Amperian loops is 

                                                              (JEE-2025)