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Combination of Resistances

Calculate the...

Question

Calculate the values of currents $I_{1}, I_{2}, I_{3}, I_{4}$ in the section of networks shown in the figure.

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Solution

This type of problem checks your understanding of KCL.
At junction $A; I_{2} + 8 = 15; I_{2} = 7 A$
At junction $D : I_{3} + 5 = 8; I_{3} = 3 A$
At junction $B : I_{2} + 3 = I_{4}; I_{4} = 10 A$
At junction $C : I_{1} = I_{3} + I_{4}; I_{1} = 13 A$

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