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CBSE Class 12-science Answered

What is the equivalent resistance between the terminals A and B in the figure below:
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

 The network shown in the above figure can be redrawn as shown in the figure below.

 
 
It is a balanced wheatstone bridge. Therefore, point C and D are at the same potential. Since no current flows in the branch CD, this branch is ineffective in determining the equivalent resistance between terminal A and B and can be removed. The branch ABC (= R+R= 2R) is in parallel with the branch ADB (= R+R= 2R) 
           
Answered by | 04 Jun, 2014, 03:23: PM
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