Answers

2016-05-09T16:31:17+05:30
Total resistance = 20 ohm

Now it is bent in a square so the resistance of each side is 5 ohm

R1 and R2 are in parallel

1/R5 = 1/5 + 1/5 = 2/5

R5 = 5/2

again the  Resistance of R3 and R4 is 5/2 ohm

so the resistance = 5/2 +5/2=10/2 = 5 ohm
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