1. A 4.0 cm-square in the x-y plane sits in a uniform electric field E=2.0i+3.0j+5.0k N/C. Find the electric
flux through the square.
2. A cube of with sides of length 2.0 m is situated as in this figure. The E-field around the cube is
E=2.0i+1.0yj. What is the charge contained within the cube?
3. A 6.0-nC point charge is located at the center of a cube of side length 2 m. What is the electric flux
through each of the faces of the cube?
4. In the air over a particular region at an altitude of 600 m above the ground, the electric field is 120
N/C directed downward. At 650 m above the ground, the electric field is 100 N/C downward. What is the
average volume charge density in the layer of air between these two elevations?
5. Consider a charged, cylindrical plastic rod that has a linear density of 3.0x10-9 C/m. What is the
electric field at a distance of 2 m from the charge.