quiz4

  1. A point charge of -2.0microCoulombs is located at the origin. How much work is required by you to bring a 10.0 microCoulomb charge from infinity (at rest) to 5.00 meters away (at rest).
    a) 7.2E-3J
    b) -7.2E-3J
    c) -3.6E-2eV
    d) -3.6E-2J
    e) +3.6E-2J
    No answer given yet
  2. A parallel plate capacitor has capacitance of 100picoFarads. The area of each plate is 100 (mm)^2. What is the spacing between the two plates.
    a) 8.85E-3m
    b) 8.85E-6m
    c) 8.85E-9m
    d) 1.13E-5m
    e) 1.13E-8m
    No answer given yet
  3. Two 10microFarad capacitors are placed in parallel with a 9.0 Volt battery. How much energy is required to charge the system of capacitors?
    a) 8.1E-4J
    b) 9.0E-5J
    c) 1.62E-3J
    d) 2.03E-4J
    e) 2.25E-5J
    No answer given yet