equivalent resistance calculation

[theCheetah]

I am going crazy trying to find a formula/equation for the equivalent resistance asross diagonally opposite ends of a resistive mesh. Can someone help.

X
o--+--Rh--+--Rh--+--Rh--(n columns)--Rh--+--Rh--+
| | | | | | |
Rv Rv Rv | | Rv Rv
| | | | | | |
+--Rh--+--Rh--+--Rh--(n columns)--Rh--+--Rh--+
| | | | | | |
Rv Rv Rv | | Rv Rv
| | | | | | |
. . . .(m rows) . --Rh--+--Rh--+
| | | | | | |
Rv Rv Rv | | Rv Rv
| | | | | | |
+--Rh--+--Rh--+--Rh--(n columns)--Rh--+--Rh--+
| | | | | | |
Rv Rv Rv | | Rv Rv
| | | | | | |
+--Rh--+--Rh--+--Rh--(n columns)--Rh--+--Rh--+--o Y



Imagine a rectangular mesh with resistors at every small segment. The horizontal segment resistances are Rh and vertical ones are Rv. Need to get a formula to calculate the effective resistance between X and Y. Any help welcome!

 

[CTho9305]

I would think you should use nodal or mesh analysis. It took a while for me to really become comfortable with it, but it's fairly useful once you really "get it". For a problem like this, it will be extremely tedious.

 

[Pulsar]

Not to mention that this sounds like a question directly out of a freshman EE course at college.....