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In the current-junction figure, which set of currents is shown leaving the node? 
A$I_1$, $I_2$, and $I_3$
B$I_2$, $I_4$, and $I_6$
C$I_4$, $I_5$, and $I_6$
D$I_1$, $I_5$, and $I_6$
Answer & Solution
Correct answer: C. $I_4$, $I_5$, and $I_6$
The arrows in the figure show $I_4$, $I_5$, and $I_6$ directed away from the central node, while $I_1$, $I_2$, and $I_3$ are directed toward it. Therefore the leaving currents are $I_4$, $I_5$, and $I_6$.
