Equivalent resistance of tricky circuits?

[asifrulzz]

equivalent resistance of tricky circuits?

Homework Statement

what is the equivalent resistance between A and B?

Homework Equations

kirchoffs law for voltage and current

The Attempt at a Solution

i got the equivalent resistance between A to C as 3R/4
but i have to find the resistance between A to B but point B is in the middle of the circuit and i don't know how to approach it
i am stuck on this
please help!

 

[SammyS]

Homework Statement

what is the equivalent resistance between A and B?https://www.physicsforums.com/attachments/43813

Homework Equations

Kirchhoff's Law for voltage and current

The Attempt at a Solution

i got the equivalent resistance between A to C as 3R/4
but i have to find the resistance between A to B but point B is in the middle of the circuit and i don't know how to approach it
i am stuck on this
please help!

Hello asifrulzz. Welcome to PF !

No attachment found !

 

[asifrulzz]

i have attached the circuit diagram

 

[gneill]

What approach have you tried? Can you show your work so far?

 

[asifrulzz]

i have always calculated equivalent resistance at the ends
i don't have any idea how i would reach at point B which is in the middle

 

[asifrulzz]

help please!
anybody
thanks in advance

 

[ehild]

The network of resistors is equivalent with a cube of resistors. You can use that the equivalent points are at equal potential if you connect a voltage source between points A and B, and can be connected with a wire.

ehild

 

[ehild]

A step ahead: The points D,E,G of the cube are equivalent and can be connected with a wire. The same holds for J, H, C.

ehild