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  4. The diagrams show five different ways in which currents i1, i2, i3 can combine at a junction. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/physics/6ef07ef8a35a995e788e114ef444bd30-.png /> For which of these junctions, is the following equation correct ? i1+i2=i3+i4

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Q. The diagrams show five different ways in which currents $i_{1}, i_{2}, i_{3}$ can combine at a junction.
image
For which of these junctions, is the following equation correct ?
$i_{1}+i_{2}=i_{3}+i_{4}$

Current Electricity

Solution:

Junction rule of Kirchhoff: Sum of incoming current equals the sum of outgoing current at a junction.