AP Physics 2 Quiz
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ELECTRIC CIRCUITS
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At junction JJ, current I1=3.0 AI_1=3.0\,\text{A} enters from the left. Currents I2=1.0 AI_2=1.0\,\text{A} and I3I_3 leave upward and to the right, respectively, and current I4=0.5 AI_4=0.5\,\text{A} enters from below (directions as labeled). Which statement correctly applies Kirchhoff's junction rule?
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