Dec 11, 2006 #1 M manish12 Advanced Member level 3 Joined Nov 21, 2006 Messages 983 Helped 66 Reputation 132 Reaction score 33 Trophy points 1,308 Activity points 6,117 How to find current density in a metal plate if the voltages are known previously?
Dec 11, 2006 #2 M m.salehi Junior Member level 2 Joined Jun 3, 2006 Messages 24 Helped 6 Reputation 12 Reaction score 1 Trophy points 1,283 Activity points 1,403 first u must calculate R=ρl/A that A is surface and l=length of ur plate and ρ depend on quality of the plate. second calculate I=V/R. current will be obtained. regards.
first u must calculate R=ρl/A that A is surface and l=length of ur plate and ρ depend on quality of the plate. second calculate I=V/R. current will be obtained. regards.
Dec 11, 2006 #3 H haitaoz Member level 3 Joined Oct 11, 2004 Messages 59 Helped 13 Reputation 26 Reaction score 4 Trophy points 1,288 Activity points 372 I think you need to devide I by the cross area of your metal plate,which is equal to width*thickness.
I think you need to devide I by the cross area of your metal plate,which is equal to width*thickness.