In the junction shown in the figure, which set of currents is entering the node? 
A$I_1, I_2, I_3$
B$I_4, I_5, I_6$
C$I_1, I_4, I_6$
D$I_2, I_3, I_5$
Answer & Solution
Correct answer: A. $I_1, I_2, I_3$
From the arrow directions in the figure, $I_1$, $I_2$, and $I_3$ point toward the junction, while $I_4$, $I_5$, and $I_6$ point away from it. Therefore the entering currents are $I_1, I_2, I_3$.
Related questions
The reactance of a capacitor $C$ at frequency $f$ in an a.c. circuit is:A bird perched on a single high voltage wire is unharmed because:The two conservation laws embodied in Kirchhoff's rules are conservation of:The resistance offered by the cell itself is called:Which device detects the current in a Wheatstone bridge?In a Wheatstone bridge, the source is connected across the:The Wheatstone bridge is made up of how many resistors?At a junction, the current entering equals the current: