| 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
Correct Answer: A
Solution :
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.
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