. In the network shown, each resistance is equivalent to R. The equivalent resistance between points A and B is
A. R/3
B. 2R/3
C. R
D. 4R/3
Best Answer
Ans: B
Sol: If a potential is applied across A and B, due to symmetry, the points C, O and D will have same potentials. We can therefore join all these points without affecting current in any branch. The network then reduces to
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