A 3-phase ,8 pole 50 Hz, star connected salient pole synchronous generator has 90 slots with 4 conductors per slot connected in series in each phase. The coil pitch is 10 slots. If the maximum value of the airgap flux is 45 mWb and the flux-density distribution in the airgap is sinusoidal.

Determine
a. the rms phase voltage
b. the rms line voltage