Change Current Source to Voltage: Beginner's Guide for Suitable Cases & Google Possibilities

I am a beginner and I would like to know in which cases I can / cannot change the current source to voltage? (if it is possible in Google)

I don't know what my colleague is about. But if we have a power source, it only has voltage, but the current begins to flow as soon as we connect a receiver to it. If I'm wrong, correct it.

It is probably about replacing current sources with voltage ones and vice versa.

Hello, I have a question, after transforming the current source into a voltage source, will the current in the circuit be equal to the current forced by the current source?
Maybe it will be easier to understand on the example, I have a current source of 2A and a parallel resistor of 1Om, after changing the source to voltage I have a voltage of 2V according to the formula and a resistor connected in series, still equal to 1Om, will the current flowing through this resistor be 2A ??

Moderated By trymer01:

Regulations, point 3.1.19. Do not send messages on archival topics if this is another question, in particular other than the questioning person. Out of respect for the questioner, create your own topic. You can only add a solution to the problem.