In a circuit shown in the figure, the capacitor C is initially uncharged and the key K is…

Physics · JEE Advanced · NTA Exams — Current Electricity

In a circuit shown in the figure, the capacitor C is initially uncharged and the key K is open. In this condition, a current of
1 A flows through the 1 Ω resistor. The key is closed at time t = t₀. Which of the following statement(s) is(are) correct?

[Given : e^–1 = 0.36]

1. The value of the resistance R is 3 W.
2. For t < t₀, the value of current I₁ is 2 A.
3. At t = t₀ + 7.2 ms, the current in the capacitor is 0.6 A.
4. For t → ∞, the charge on the capacitor is 12 mC.