Different flux wavefroms and variation of its RMS EMF equations

Average value of EMF for a transformer primary coil is

Sinusoildal Flux

Form factor is 1.11. Hence, RMS EMF

Bipolar Square Flux

Form factor is 1. Hence, RMS EMF

Unipolar Square Flux

The average EMF for unipolar square flux is

Form factor for unipolar flux is 1, therefore RMS EMF is