In the circuit shown, the switch S_1 is closed at time t =0 and the switch S_2 is kept open. At some later time ( t_0), the switch S_1 is opened and…

In the circuit shown, the switch $\displaystyle \mathrm{S}_1$ is closed at time $\displaystyle \mathrm{t}=0$ and the switch $\displaystyle \mathrm{S}_2$ is kept open. At some later time $\displaystyle \left(\mathrm{t}_0\right)$, the switch $\displaystyle \mathrm{S}_1$ is opened and $\displaystyle \mathrm{S}_2$ is closed. The behaviour of the current I as a function of time 't' is given by :