there is a wire of non uniform cross section
what remains constant in it?
acurrent bcurrent density cE(vector) ddrift velocity eresistivity......... when both a cell is connected and when not connected

Question

there is a wire of non uniform cross section
what remains constant in it?
a>current b>current density c>E(vector) d>drift velocity e>resistivity......... when both a cell is connected and when not connected

anonymous · Answer

|dw:1345465407786:dw|

anonymous · Answer

1 is correct

anonymous · Answer

how ?  n also it is nAVde not eta

anonymous · Answer

when cell is connected.........
J=n(Vd)e,
 

e,Vd...are.constant J=n(Vd)e,is.varying
.as n=no of e per vol is variable   resng   1
|dw:1345513274652:dw|
   resng   2
which of these is correct?