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Find effective resistance between Aand B if resistance of each resistor is R

Asked by venkat 7th November 2017, 8:15 PM
Answered by Expert
Answer:
 
 
The Resistance network drawn above as per the question can be redrawn as given below
 
In the above figure though all resistance are equal, they are labelled for convenience. 
R1 is parallel to R2. R5 is parallel to R6. Hence the above figure can be redrawn considering
the effective resitance of R1 & R2 also R5 & R6
 

 
So from above figure it will be known that a resistance (R/2) + R  is parallel to (R/2) + R. 
Hence the effective resistance is 0.75×R
Answered by Expert 13th November 2017, 11:13 AM
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