[填空题]
A capacitor is charged by a 125-Vu/g , mdkhv2g a7 tjd(bb:d1:y battery (Fig. 17–29a) and tcf* dxfm,xb51 ,x1 rtlhen is disconnected from the bat f*r1c,xlxd1,b 5 fmxttery. When this capacitor $(C_1)$ is then connected (Fig. 17–29b) to a second (initially uncharged) capacitor, $C_2$, the final voltage on each capacitor is 15 V. What is the value of $C_2$? [Hint: charge is conserved.] $ \times10^{ -5}\,F$
