How do I calculate the total resistance in the following circuit? I can't find any way to break it up into strictly parallel, serial parts while keeping the resistor terminals that should be electrically common so.

 |----------------|
 |        |
 |       /  \
 |       /   \
 |      r1    r2
 |      /     \
v1     |-----r3-----|
 |      \     /
 |      r4    r5
 |       \   /
 |       \  /
 |        |
 |----------------|

The r components are resistors and the v component is a voltage source. Make up whatever numbers you wish for the voltage and resistances, I'm only interested in how you solve it.

Any help appreciated,
Ulf

 

Originally posted by Ulfalizer@Jul 10 2005, 06:31 PM
How do I calculate the total resistance in the following circuit? I can't find any way to break it up into strictly parallel, serial parts while keeping the resistor terminals that should be electrically common so.

 |----------------|
 |                |
 |              /   \
 |             /     \
 |           r1       r2
 |           /          \
v1         |-----r3-----|
 |           \          /
 |           r4       r5
 |             \     /
 |              \   /
 |                |
 |----------------|

The r components are resistors and the v component is a voltage source. Make up whatever numbers you wish for the voltage and resistances, I'm only interested in how you solve it.

Any help appreciated,
Ulf

[post=9016]Quoted post[/post]​

Hi Ulfalizer,

You have come to a great place to pose that question. AAC has a terrific tutorial on this very subject. One way to solve this type of problem is to use the wye-to-delta conversion. This technique is well covered in the tutorial. Just follow the link below to access the material.

Y to delta conversion

hgmjr

 

Originally posted by hgmjr@Jul 11 2005, 12:46 AM
Hi Ulfalizer,

You have come to a great place to pose that question. AAC has a terrific tutorial on this very suibject. One way to solve this type of problem is to use the wye-to-delta conversion. This technique is well covered in the tutorial. Just follow the link below to access the material.

Y to delta conversion

hgmjr

[post=9017]Quoted post[/post]​

Thanks! Those equations weren't even that hard to derive from the fact that the resistance between any two terminals should be the same in both forms. Not that I would have thought of it in the first place

Ulf

 

Hello.
i am a new member and i want to give u answer frm my mind.
first multiply all the resistance and then get LCM of it then u will get a parrallel equation, putting all the resistances values in that equation.
reply me if some problem occur.