College Physics Quiz
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DC CIRCUITS
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In the junction shown, four currents meet at point S. The currents are: I₁ = 5.5 A (entering), I₂ = 2.3 A (entering), I₃ = 4.1 A (leaving), and I₄ (direction unknown). After applying Kirchhoff's junction rule, what additional information is needed to solve for both the magnitude and direction of I₄? Figure accompanying this question
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