JEE PYQ: Current Electricity Question 34
Question 34 - 2020 (09 Jan 2020 Shift 1)
In the given circuit diagram, a wire is joining points B and D. The current in this wire is:
(1) 0.4 A
(2) 2 A
(3) 4 A
(4) zero
Show Answer
Answer: (2)
Solution
From circuit: $R_1 = \frac{4}{5}$, $R_2 = \frac{6}{5}$. $R_{\text{eff}} = 2,\Omega$. $i = \frac{20}{2} = 10$ A. $I_{BC} = \frac{4i}{5} - \frac{3i}{5} = \frac{i}{5} = 2$ A.