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how to find resistance here? what’s the resistance? sorry for the unclear picture.

how to find  resistance here? what’s the resistance?
sorry for the unclear picture.

Question Image
Grade:10

1 Answers

Vijay Mukati
askIITians Faculty 2590 Points
5 years ago
Dear Student,

1 ohm and 2ohm which are in series at the top (1+2 = 3 ohm) will be in parallel with the 2ohm and 4 ohm resisters which are in series at the bottom(2+4 = 6). On parallel operation for this resisters, you will get the equivalent resistor as (6*3/(6+3) = 2 ohm). Now this 2ohm will be in series with 4 ohm shown in the middle (2+4 = 6ohm). and fillnaly the resultant would be in parallel with the 2ohm at the top left.
So final equivalent resistance between A & B will be (6*2/6+2 = 12/8 = 3/2 ohm) 3/2 ohm.

(Redraw the simpler figure by keeping A on left side and B on right)
Thanks.

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