Please help me solve the questions

2. A charge of - 6 nC is placed inside a hollow cavity of a large spherical conductor that is electrically neutral. What is the total charge on the outer surface of the metal? A. 0 Outer surface Conductor B. - 3 nC - 6nC C. - 6 nC ab to bolton g + 6 nChe cosay 81 Sd miog 3. A parallel-plate capacitor is formed from two 8.0 cm diameter electrodes spaced 0.2 mm apart. The capacitor is connected for a long time to an 80.0 Volt battery. AV = 80. V What is the approximate charge on the capacitor's positive electrode? A) 1.8 nC ( C): Q = CAVC EO = 8 81 x10 12 2/ N. m2 2(0.08m) B) 17.8 nc C= SA - a = ( 8 : 85x1072 ) ( 0 00 02 x 6.0% ) C)5.7 nc C = 818 *10-12 (16*10-4) D) 71.2 nC 0.0 0 02 C = 7. 08 * 10 - 12 Q = ( 7 . 08 x 10 72 ) (soV ) Q = J. 664x 10-10 Q - sitnc