question_answer

At t < 0, the capacitor is charged and the switch is opened. At t=0 the switch is closed. The shortest time T at which the charge on the capacitor will be zero is given by

A) \[\pi \sqrt{LC}\] 

B) \[\frac{3}{2}\pi \sqrt{LC}\,\]

C) \[\frac{\pi }{2}\sqrt{LC}\,\]        

D) \[2\pi \sqrt{LC}\,\]