Recent content by deepankvora

yeah, that's ok. what i said is: let there be a wire of length L. Now how can you say that current in a part(segment) of it, say x be same? My attempt at a proof is: Consider a cross-section(plane) perpendicular in the part x. now, since this is also a cross-section of L length wire, by...

so for proving this, do we have to consider a crosssection in the x length and say that it is a crosssection of the whole wire so it will have same current as the whole wire of length L. and because the crosssection of x segment has that current, the x segment will have the same current ? if...

alright, but if I take a wire of length L. Now how do we say that the current in the length, say x which is part of the wire, is the same(x is not a cross section, it is a finite length)?

so for proving this, do we have to consider a crosssection in the dl element and say that it is a crosssection of the whole wire so it will have same current as the wire. and because the crosssection of dl element has that current, the dl element will have the same current ? if not, then how...

probably because the length is unequal

Why is that so? why is current in the wire same as current in an element of the wire.

Sorry if I stated wrongly. I have attached a file. Kindly see. What I mean is, I read that we define current as rate of flow of charge through a CROSS-SECTION. So, If we take many cross-sections (or points) on the wire, by conservation of charge, the current at those points must be same. Is...

I do understand why current must be same at all points in series as charge is conserved. BUT, why is the current in the length 'dl' of the wire same as the current in the full wire, that is 'L' length. It is sort of confusing.

1)I do understand why current must be same at all points in series as charge is conserved. BUT, If a current, say 'I' is created in a loop, then why, exactly, do we say that the current in a part or element of the wire is the same, that is, 'I'?? Why is current independent of the length of wire...

Curent Electricity Doubt! PLEASE HELP! Homework Statement I did not understand one thing.. If it is given that a wire has a current 'i', then why do we say (in applications of laws such as biot savart law) that the current in a small element of the wire is also 'i', that is the same current...