1.

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. \[2\pi \sqrt{LC}\,\]
Answer» D. \[2\pi \sqrt{LC}\,\]


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