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  4. The current in the part of electric circuit is <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/physics/faf4e23e0730b600fa84b1d445ef7d84-.png />

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Q. The current in the part of electric circuit is
image

Solution:

By Kirchoff's junction law,
In $P Q$ branch current $=2+2=4\, A$
In $Q R$ branch current $=4-1=3\, A$
$i=3\, A -1.3\, A =1.7\, A$