Creative Commons License Copyright © Michael Richmond. This work is licensed under a Creative Commons License.

Phys 313 Quiz 7

Question 1

What are the units of electric flux?

   Answer:   Newtons * (meters squared) / Coulombs
             

Question 2

Gauss' Law describes a relationship between the electric flux through a closed surface and ... what ?


   Answer:    the charge enclosed by that surface

Question 3

An iron safe has a net positive charge on its walls. The safe is closed (and empty). Describe the direction of the electric field
a) just above the exterior surface of the top of the safe
b) just below the interior surface of the top of the safe

   Answer:  Just outside the top of the safe, the electric field
	         points upwards, perpendicular to the surface.

            Everywhere inside the safe, the electric field is zero.

Creative Commons License Copyright © Michael Richmond. This work is licensed under a Creative Commons License.