Hi, I wanted to clarify a point about the magnetic fields of a solenoid and wire. Do the fields extend to infinity? In my opinion, they don't but they can assuming the current also goes to infinity. They don't extend to infinity for a limited amount of current because they need to follow a closed path. But in the case of a single charge the field does extend to infinity. In the case of two oppositely charged bodies, again the fields don't extend to infinity. Could you please confirm if I have it correct? Thank you!