Figure shows a network of eight resistors numbered 1 to 8, each equal to 2 Ω connected to a 3 V battery of negligible internal resistance. The current I in the circuit is

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0.25 A

0.5 A

0.75 A

0.1 A

answer is D.

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Detailed Solution

We convert the deltas ABE and CDF to stars.Equivalent resistance =2R3 +5R6 = 9R6=3×22=3 I=V1.5 R = 31.5 ×2 =1A

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