Question

The figure shows part of circuit with the direction of electric currents I1, I2, I3, I4, and Ix indicated by ar- rows. Which is the correct expression for Ix?

Please explain the reasoning behind the answer

12. The figure shows part of circuit with the dire

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Answer #1

Ix=I1+I2-I3-I4

by KCL At any node (junction) in an electrical circuit, the sum of currents flowing into that node is equal to the sum of currents flowing out of that node. The algebraic sum of currents in a network of conductors meeting at a point is zero.

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