JEE PYQ: Current Electricity Question 71
Question 71 - 2019 (12 Jan 2019 Shift 1)
In the given circuit diagram, the currents, $I_1 = -0.3$ A, $I_4 = 0.8$ A and $I_5 = 0.4$ A, are flowing as shown. The currents $I_2$, $I_3$ and $I_6$, respectively, are:
(1) 1.1 A, $-0.4$ A, 0.4 A
(2) 1.1 A, 0.4 A, 0.4 A
(3) 0.4 A, 1.1 A, 0.4 A
(4) $-0.4$ A, 0.4 A, 1.1 A
Show Answer
Answer: (1)
Solution
From KCL: $I_3 = 0.8 - 0.4 = 0.4$ A… Actually: $I_3 = I_1 - I_5 = -0.3 - 0.4 = -0.7$… Using proper junction analysis: $I_6 = 0.4$ A, $I_2 = 0.4 + 0.4 + 0.3 = 1.1$ A, $I_3 = -0.4$ A.
BETA
