Question 1 A metal ball of radius 5.60 cm is charged until the electric field until the electric field 5.00 cm from the surface of the ball is 7.80x104 N/C. What is the total charge on the ball? O 97.5 nc O 27.2 nc O 920. nc O 21.7 nc Question 2 A capacitor is formed by placing two circular disks 0.310 mm apart. The disks are charged by transferring 3.80x10 electrons from one to the other. The electric field inside the capacitor is then 5.60x104 N/C. What is the diameter of the disks? O 7.01 cm O 2.28 cm O 2.79 cm O 3.95 cm Question 3 A charged 2.50 g glass bead hangs suspended in the air by an electric field. If the bead was charged by the removal of 3.20x10" electrons, what must the electric field magnitude be? 8.00x1010 N/C O 4.79x106 N/C 7.66x10-13 N/C O 4.88x108 N/C