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  4. In the given circuit diagram, a connecting wire of negligible resistance is joining the points B and D , the current in the connecting wire is <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-fu9qtfwnyksk0ryp.jpg />

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Q. In the given circuit diagram, a connecting wire of negligible resistance is joining the points $B$ and $D$ , the current in the connecting wire is
Question

NTA AbhyasNTA Abhyas 2022

Solution:

Solution
$R_{eff}=\frac{4}{5}+\frac{6}{5}=2\,\Omega$
$i=\frac{20}{2}=10A$
$I=\frac{4 i}{5}-\frac{3 i}{5}=+\frac{i}{5}=2\,A$