MULTIPLE CHOICE: Directions: Read each item carefully then write the LETTER of the correct answer on the space before the number. 1. What remains the same when capacitors are connected in series? A. capacitance B. charge C. voltage 0. resistance 2. What varies when capacnors are connected in series? A. capacitance 8. charge C. voltage 0 re5istance 3. Which of the following media has high capacnance? A. air B. metal C. mica D. water 4. What is the main use of a capaCitor? A. It stores electrical energy. C. It stores magnetic energy B. It vanes the resistance. D. it dissipates energy 5. What happens when the plate area of a capaCitor increases? A. The capacitance increases. C. The capacnance lS not affected B. The capacitance decreases D. The voltage It can Withstand increases 6. Why does capacitor block dc signal at a steady state? A. capacitor does not pass any current at steady state B. due to high frequency of do Signal C. due to low frequency of dc Signal D. due to zero frequency of dc Signal 7. What is the value of capacitance of a capacuor which has a voltage of 4 V and 16 C of charge? A.2F B.4F C.6F 08F 8. Which of the following is the St unit of capacnance? A. Coulomb B. fared 0. ohms D. watts 9. When can you say that the capacitance between two plates is increasmg? A. If there is larger plate area and longer distance between plates 8. If there is larger plate area and shorter distance between plates C. If there is shorter plate area and higher voltage applied D. lf there is shorter plate area and shorter distance between plates 10. What is considered as the storehouse of energy for electric dewces? A. battery B. capacitance C. capacitor 0. resistor 11. Which of the following materials has the greatest dielectric strength? A. paper B. porcelain C. nylon D. tetlon 12. What do battery and capacitor have in common? A. They can be in series or parallel. 8. They both store and release chemical energy. C. They have molecules that move randomly. D. They store and release electrical energy. 13. All of the following are properties of dielectric materials EXCEPT one. Which is it? A. low resistivity 8. high insulation resistance C. energy gap in the material is very large D. very strong attraction between electrons and the parent nucleus 14. What is the term used for substances that have constant resistance over wide range at voltages? A. non-ohmic B. non-resistive C. ohmic D resistive 15. Which of the following is a non-dielectric material? A Cotton B. distilled water C. dry air D. vacuum 16. What is the common term used for the insulating layer between capacitors' plates? A. charge B. dielectric C farad D. magnitude 17. Which of the following statements is TRUE about capacitors? A. In series connection, voltage is the same B. In series connection. the equivalent resistance increases C. In senes connection. all have the same amount of charge D. In parallel connection. the equivalent resistance decreases 18. How is the capacitance of a parallel plate capacitor affected by the distance between the plates? A. C is not affected by the area A of each plate B. C is directly proportional to the area A of each plate C. C is partially proportional to the area A of each plate D. C is inversely proportional to the distance d between the plates 19. What is the total capacitance for the three capacitors connected in series, 1.00pF, 5.00 pF, and 8.00 UF? A. 0.555 pF B. 0.665 pF C. 0.755 UF D. 0.855 UF 20. What is the electric field strength of a stationary 30C charge at a distance of 80 cm away. Given the value k= 8.9875 x 10" Nm /C?? A. 3.37 x 10" N/C pointing away from the source charge B. 3.37 x 10" N/C pointing towards the source charge C. 4.21 10" N/C pointing away from the source charge D. 4.21 10" N/C pointing towards the source charge