Time Dependence of LR Circuit
Three resistors (R_{1} = 120 Ohms, R_{2} = 330 Ohms, and R_{3} = 240 Ohms) and an ideal inductor (L = 1.6 mH) are connected to a battery (V = 9 V) through a switch as shown in the figure below.
The switch has been open for a long time before it is closed at t = 0. At what time t_{0}, does the current through the inductor (I_{3}) reach a value that is 63% of its maximum value?
t_{0} = s
