11. Given that C1 = 10 F and C2 =5 F. Determine the e"ective capacitance for C1 and C2 connected in parallel and in series. [ a) 15 F; 3.3 F [ b) 3 F; 5 F O c) 2F; 2 F [ d) 0.5 F; 2 F 12. Which of the following methods can be used to increase the capacitance of a parallel plate capacitor? [a) The distance between the plates is [ b) A greater plate area is used increased [ c) The potential di"erence between the [ d) Material with a smaller dielectric constant plates is increased is used 13. Four capacitors, each with 6 JF of capacitance are connected to produce the equivalent capacitance of 6 pF. Which of the following system will get the result stated? Ja)HHH- [ b) [ c) [ d) 14. The total work required to move 20 C of charge 20 cm from point A to point B is 2 J. What is the potential di"erence between A and B? [ a) 1.0 x 10-1 v [b) 4.0 x 10-1 v [c) 2.0 * 10-1 v [ d) 4.0 x 10-2v