four 12 ohm resistance are connected in parallel three such combination are connected in series what will be the total resistance
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The total effective resistance is 16 ohm.
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Resistance of i combination = 12/4 = 3Ω.
[ 1/R = 1/R₁ + 1/R₂ ..... + 1/Rₐ]
In series R = R₁ + R₂ ..... + Rₐ
So we have R = 3 + 3 + 3 = 9Ω
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