8. [-/2 Points] DETAILS MY NOTES (a) How much charge is on each plate of a 3.00-UF capacitor when it is connected to a 20.0-V battery? UC (b) If this same capacitor is connected to a 2.50-V battery, what charge is stored? HC Need Help? Read It Watch It 9. [-/2 Points] DETAILS MY NOTES An isolated charged conducting sphere of radius 13.0 cm creates an electric field of 4.90 x 10" N/C at a distance 24.0 cm from its center. (a) What is its surface charge density? HC/m2 (b) What is its capacitance? PF Need Help? Read It