11Pls ignore the stupidity of the question [2]
Please help me out people. Charges flow only when there is a potential difference b/w two points. Also in a wire, there is a potential difference b/w two points only when there is an electric component b/w them. So in an ordinary current carrying wire, how does current flow??? [7][7][7][7][7][7][7][7][7][7][7][7][7][7][7][7][7]
-
UP 0 DOWN 0 0 16
16 Answers
1see in a wire whn no current is flowing initially the potential of the whole wire is constant nd whn current starts flowing if u consider two pts.......,let those pts be like this: 
let current flows throught A 1st and thn through B.Then A wld be always at higher potential as compared to B.
62correction in moon's statement: potential of the whole wire is zero "Constant"
11So there is a potential difference between A and B. But there aren't any electrical components b/w A and B. So there is 0 resistance between A and B. Hence for Ohm's law to be obeyed, the current must be ∞ (for pd to be finite)
[7][7][7][7][7][7][7][7][7][7][7][7]
I think i've got some basics basically wrong. PLs correct me. [2]
1whn thr is no current in the wire thn hw will thr be any potential diff?
11Sky, we call them wires bcos they do not have resistance [3]
11he meant that potential difference causes current to flow
and not the current flow causes potential difference
hope u got it now