Question
Fri June 17, 2011 By:

In the given figure, find equvivalent resistance between A and B? Please solve by making equivalent figures in each step so that I could understand properly.

Expert Reply
Wed June 29, 2011
If we stretch the points A and B away from each other then it is evident that the given circuit is the conventional wheat stone bridge which is balanced. In this situation the contribution of the middle resistance is zero.
 
Then resultant resistance between A and B = (1 + 1) || (1 + 1) = 2 || 2 = 1 ohm   
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