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Question

A battery of 10 V and negligible internal resistance is connected across the diagonally opposite corner of a cubical network consisting of 12 resistors each of resistance 1Ω. The total current I in the circuit external to the network is
330721_cf2ac5256d95428589552b1e65f91756.png
  1. 0.83A
  2. 12 A
  3. 1A
  4. 4A

A
1A
B
12 A
C
0.83A
D
4A
Solution
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Answer is B.

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