JEE PYQ: Alternating Current Question 11
Question 11 - 2021 (24 Feb Shift 1)
Figure shows a circuit that contains four identical resistors with resistance $R = 2.0\Omega$. Two identical inductors with inductance $L = 2.0$ mH and an ideal battery with emf $E = 9$ V. The current ‘$i$’ just after the switch ‘$s$’ is closed will be:
(a) 9 A (b) 3.0 A (c) 2.25 A (d) 3.37 A
Show Answer
Answer: (c)
Solution
When switch is closed, inductors act as open circuits. $R_{eq} = 2 + 2 = 4\Omega$. $I = \frac{9}{4} = 2.25$ A.