Thanks Navya C for responding.

I didn't reply back to the tread because I was reading research papers to get more clearity. I also read Maxwell3D technical note part in the manual in detail. I have got one very basic query, and hoping your clarification on that.

In the manual the H is defined in the following way: 

And later, following governing equations are listed for H: 

As per my understanding Hp is magnetic field due to source current, T is electric vector potential defined in the conducting region with eddy current turned on, and both Ω and φ represent the magnetic scalar potential. 

Could you please tell what is the difference between the definition of Ω and φ?

Are these related to reduced magnetic scalar potential and total magnetic scalar potential?