Phys 4, Section 2                                                                     Jan 24, 2002

1. According to Benjamin Franklin, which of the following acquires a positive
    charge?
    A) fur                 B) rubber             C) both         D) neither

2. Another word for dielectric is
    A) conductor         B) plastic         C) insulator         D) metal

3. If you are charging by induction, you must remove your finger
    A) first             B) last             C) doesn’t matter

4. If you want to charge a second object opposite to the charge on a first object,
    you should use the method of charging by
    A) induction             B) conduction

5. Who developed the basic law of electrostatics that allowed numerical solutions?
    A) Franklin         B) Newton         C) Coulomb         D) Ampere

6. Which of the following can be found in empty space?
    A) electric field     B) electric force     C) electric charge     D) any of these

7. Electric field lines originate on
    A) positive charges         B) negative charges         C) either

8. Electric flux is defined for
    A) open surfaces only         B) closed surfaces only         C) both

9. Flux depends on the angle between field and surface.
    A) true                 B) false

10. If a flat circular surface in an electric field is to have maximum flux through it,
    the flat surface and the field should be
    A) parallel to each other        B) orthogonal to each other
    C) flux doesn’t depend on angle

Answers: 1-a, 2-c, 3-a, 4-a, 5-c, 6-a, 7-a, 8-c, 9-a, 10-b

Last modified on April 04, 2002