How the current branches in short circuit?

[yousefsam]

Hello All,
Plz dears I have a problem with short circuit that found in complex (connection resistor in series and parallel) circuit, however I can't determine when we remove the resistor in short cicuit, plz help me and I want from you if Anyone have a book or paper about short circuit plz upload it on the net .
I talked about circuit that only have resistors.
and I want from you explain how the current branches in short circuit in complex connection of circuit contains resistor only .

 

[hr_rezaee]

plz plz plz help me

Hi
please explain more.
regards

 

[yousefsam]

Re: plz plz plz help me

Thank you for your concern,
dear yesterday our doctor ask us the question about circuit and he drawn in the circuit line between two points please download the picture from this site : www.rapidshare.de/files/24841824/www.JPG.html
then he told us we neglect R* and R** but I'm not understood him plz help me to overtake this problem , and the remained resistance in parallel plz help me.

 

[VVV]

Re: plz plz plz help me

A short-circuit means all the current will flow through it and none through the rest of the circuit connected between the same two points as the short. So the current no longer branches; it simply flows entirely through the short.

Note that the short-circuit connects together the ends of both R* and R**. Therefore, the line shorts out both R* and R** so it does not matter what value they are. They are now replaced by zero ohms.

I find it strange, though, that the whole circuit seems to be actually short-circuited between points a and b. If that is truly the case, then you can do anything you want to the other resistors, short them or disconnect them, the resistance between a and b is still zero.