At time t = 0 the charge on the 50-$\mu$F capacitor in an LC circuit is 15 $\mu$C and there is no current.If the inductance is 20 mH the maximum current is:
A)15 nA
B)15 $\mu$A
C)6.7 mA
D)15 mA
E)15 A

Question

Quizplus · Accepted Answer

The maximum current in an LC circuit is given by $ I_{max} = \frac{Q_{max}}{\sqrt{L/C}} $. Given $ Q_{max} = 15 \mu C $, $ L = 20 mH $, and $ C = 50 \mu F $, the maximum current is 15 mA.

At Time T = 0 the Charge on the 50- μ\muμ

At Time T = 0 the Charge on the 50- $\mu$