15. [J2 Points] DETAILS MY NOTES ASK YOUR TEACHER (a) HowI much charge can be placed on a capacitor with air between the plates before lt breaks down if the area of each plate is 3.00 (ml? E nc (b) Find the maximum charge if porcelain is used between the plates instead of air. E nc Need Help? 16. [-!1 Points] DETAILS MY NOTES A parallelplate capacitor is charged and then is disconnected from the battery. By what factor does the stored energy change when the plate separation is then doubled? Q It becomes four times larger. 0 It becomes two times larger. 0 It stays the same. 0 It becomes one-hallc as large. 0 It becomes one-fourth as large. Need Help? _ T