[填空题]
The RC circuit of Fij cwpb:-( hnpf7s1oy5g. Below a (same as0cnd r; o2tx5e Fig. Below b) has $R\,=\,6.7k\Omega$ and $C\,=\,3.0\,\mu F$. The capacitor is at voltage $V_0$ at $t=0$. when the switch is closed. How long does it take the capacitor to discharge to 1.0% of its initial voltage? $ \times10^{ -2}\;s$
a
b
a
b