Taught in the very first class for engineers. Voltage sources and current sources are different.
Had you actually taken any courses in electricity, nevermind engineering courses, you would understand equivalence theory.
Your post indicates zero understanding.
What is an electric welder or the heater coils on a stove? Near zero voltage and a large current. How can that large current exist without a large voltage?
Low resistance dude. You do not even understand ohms law. Very interesting...
And yet, there are those who read you and believe you. THAT is scary.
pps...Gee, when I power a superconductor to 10 thousand amperes, there is NO voltage across it.
no voltage, 10 thousand amperes......and what about MRI's in persistent mode.
No voltage, hundreds of amperes, 2 tesla central field, NO POWER SUPPLY!!!
First learn simple electrical principles. Learn from any "introduction to electric circuits" book.
AH...you follow the "do as I say, not as I do" principal.
You must learn ohms law first...
Cheers, John
ps...then again, your value as comic relief knows no bounds...