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On bending 20 ohms resistance into the square. At the ends of the opposite vertexes /diagonal, thise two points will devide the resistance into 2 equal resistances of 10 ohms each. These are the now in the parallel order. The total /final resistance will be 5 ohms. 1/R=1/R1 +1/R2
=1/10 +1/10
=2/10 ohms, R=5 ohms.
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pranaykumar114:
I didn't even understood the question in the first sight....
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