1. [1/2 Points] DETAILS PREVIOUS ANSWERS OSUNIPHYS1 25.3.P.043. MY NOTES PRACTICE ANOTHER (a) What is the energy (in J) stored in the 15.0 UF capacitor of a heart defibrillator charged to 7.40 x 10* v? 410.7 (b) Find the amount of stored charge (in mc). 1.11e-04 x mc + 2. [-/1 Points] DETAILS OSUNIPHYS1 25.2.WA.016. MY NOTES Find the total capacitance of the combination of capacitors shown in the figure below. (C1 = 0.170 HF, C2 = 0.0840 HF.) UF C 0.300 HF 3. [-/4 Points] DETAILS OSUNIPHYS1 25.2.P.039. MY NOTES A 7.0 HF capacitor and a 6.0 UF capacitor are connected in series across a 4.5 kV potential difference. The charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. Find the charge on each capacitor (in mC) and the voltage across each capacitor (in V). (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) 7.0 UF capacitor charge mc voltage V 6.OHF capacitor charge mc voltage V3. [-/2 Points] DETAILS HRW10 24.P.011. MY NOTES PRACTICE ANOTHER A nonconducting sphere has radius R = 2.88 cm and uniformly distributed charge q = +4.50 fC. Take the electric potential at the sphere's center to be Vo = 0. (a) What is V at radial distance r = 1.45 cm? (b) What is V at radial distance r = R? 4. [-/1 Points] DETAILS HRW10 24.P.064. MY NOTES PRACTICE ANOTHER An empty hollow metal sphere has a potential of +320 V with respect to ground (defined to be at V = 0) and has a charge of 4.8 X 10- C. Find the electric potential at the center of the sphere. V 5. [-/3 Points] DETAILS HRW10 25.P.001. MY NOTES PRACTICE ANOTHER The two metal objects in the figure have net charges of +68 pC and -68 pC, which result in a 30 V potential difference between them. (a) What is the capacitance of the system? PF (b) If the charges are changed to +218 pC and -218 pC, what does the capacitance become? DE (c) What does the potential difference become? 6. [-/1 Points] DETAILS OSUNIPHYS1 25.1.P.019. MY NOTES PRACTICE ANOTHER What charge (in mC) is stored in a 250 UF capacitor when 140 V is applied to it? mc Additional Materials Reading 7. [-/1 Points] DETAILS OSUNIPHYS1 25.1.P.025. MY NOTES PRACTICE ANOTHER The plates of an empty parallel-plate capacitor of capacitance 8.0 pF are 4.5 mm apart. What is the area of each plate (in m)?8. [-/1 Points] DETAILS OSUNIPHYS1 25.1.WA.001. MY NOTES PRACTICE ANOTHER What capacitance is needed to store 3.97 JC of charge at a voltage of 173 V? F Additional Materials Reading 9. [-/1 Points] DETAILS OSUNIPHYS1 25.1.WA.002. MY NOTES PRACTICE ANOTHER A 9.00-V battery is connected in series with a capacitor. If the capacitance of the capacitor is 0.26 uf, how much charge is on each of its plates? Additional Materials Reading10. [-/4 Points] DETAILS OSUNIPHYS1 25.1.WA.004. MY NOTES PRACTICE ANOTHER The diagram below shows the two plates of a parallel plate capacitor. A negative charge enters the region between the plates through a hole in the left plate. (a) If the charge experiences a positive acceleration as it moves toward plate B, what is the charge on the plate A? O- positive negative (b) What is the direction of the electric field in the region between the plates? directed from A to B directed from B to A directed upward and parallel to the plates directed downward and parallel to the plates (c) Instead of speeding up, once it goes through the hole in the plate A it slows down until its speed reaches zero at the location x and then it turns and accelerates toward the plate A. What is the charge on the plate A in this case? O- positive negative (d) What is the direction of the electric field in the region between the plates now? directed from A to B directed from B to A directed upward and parallel to the plates directed downward and parallel to the plates Additional Materials11. [-/1 Points] DETAILS OSUNIPHYS1 25.2.WA.019. MY NOTES PRACTICE ANOTHER What capacitance do you need to connect in series to a 126 UF capacitor to get an equivalent capacitance of 49.0 JF? UF Additional Materials Reading 12. [-/1 Points] DETAILS BAUERPHYS2 24.P.037. MY NOTES PRACTICE ANOTHER A large parallel plate capacitor with plates that are square with side length 9 cm and are separated by a distance of 4.6 mm is dropped and damaged. Half of the areas of the two plates are pushed closer together to a distance of 2.3 mm. What is the capacitance of the damaged capacitor? 13. [-/1 Points] DETAILS BAUERPHYS2 24.P.038. MY NOTES PRACTICE ANOTHER Three capacitors with capacitances C1 = 3.0 nF, C2 = 1.9 nF, and C3 = 4.1 nF are wired to a battery with V = 14.9 V, as shown in the figure. What is the potential drop across capacitor C2? C= = C2 14. [-/5 Points] DETAILS BAUERPHYS2 24.P.041. MY NOTES PRACTICE ANOTHER Six capacitors are connected as shown in the figure. (a) If C3 = 1.7 nF, what does C2 have to be to yield an equivalent capacitance of 5.000 nF for the combination of the two capacitors? (b) For the same values of C2 and C3 as in part (a), what is the value of C1 that will give an equivalent capacitance of 1.985 nF for the combination of the three capacitors? (c) For the same values of C1, C2, and C3 as in part (b), what is the equivalent capacitance of the whole set of capacitors if the values of the other capacitances are C4 = 1.4 nF, C5 = 2.2 nF, and C6 = 4.8 nF? (d) If a battery with a potential difference of 11.7 V is connected to the capacitors as shown in the figure, what is the total charge on the six capacitors? (e) What is the potential drop across C5 in this case