• question_answer The capacitor shown in figure 1 is charged completely by connecting switch S to contact a. If switch S is thrown to contact b at time $t=0,$which of the curves in figure 2 above represents the magnitude of the current through the resistor R as function of time t? A) J B) K C) L          D) M

The potential difference across completely charged capacitor is V. As the switch is pushed to b, the initial current in the resistor R is $\frac{V}{R}.$ Hence J is the correct option.