A dc 4 pole wave wound generator is running at 1000 rpm having 1200 conductors and flux density is 10 * mwb. find the generated emf 20 V O

In a certain magnetic circuit, the core is represented two reluctances as shown below. Assume a relative permeability μr = 2500, and a number of turns N = 420 turns. Find the current needed to produce a flux of 15 mWb in the core. སྐ Select one: O a. i=142 mA O b.i=14.2 A c.i=1.42 A O d. None Clear my choice RI =15624 A.t/Wb Rgap = 24.2 KA.t/Wb

A 6 pole DC lap wound generator has 41 armature conductors with flux per pole is 23 mWb and the e.m.f generated is 80 V, then the speed of the machine is O 0.74 rps O 84.84 rps O 7.43 rps 84.84 rps

A 4 pole d.c. The generator has 378 conductors connected to the wave winding. It is rotated at 1000 rpm. If the generated emf is to be 250 V, how much flux must be maintained per pole?