How is current induced in superconductors?

[Kenneth L Bridges]

I understand that the source of the heater is the resistance R, that being said, what governs the level of resistance and when it is changed what affect does
this have on the superconductor. Can Kevin explain. And if the R can be modulated through or by another means making it a variable, what does this do
to the equasion?

 

[Dale]

I understand that the source of the heater is the resistance R

The source of the heat is not the resistance R. The heat is supplied by a completely separate circuit that does not interact electrically with the superconductor

 

[SanderStols]

I enjoyed reading the discussion and I am glad to say that I now understand the whole process of setting up a large current in a superconducting coil.