S5 S3 +7 nC - 6 nC + +3 nC + S4 S2 - 5 nº - 4 nC +2 nC +

We have calculated the electric field due to a uniformly charged disk of radius R, along its axis. Note that the final result does not contain the integration variable r: R. Q/A 2€0 Edisk (x² +R*)* Edisk perpendicular to the center of the disk Uniform Q over area A (A=RR²) Show that at a perpendicular distance R from the center of a uniformly negatively charged disk of CA and is directed toward the disk: Q/A radius R, the electric field is 0.3- 2€0 4.4.1b

Consider two imaginary spherical surfaces surrounding a point charge +Q. One is a sphere of radius 10 cm and the other is a sphere of radius 20 cm. Which statement about the net flux through these surfaces is correct? correct?   The net flux through the larger sphere is the same as the net flux through the smaller sphere.   The net flux through the larger sphere is half the net flux through the smaller sphere.         The net flux through the larger sphere is four times the net flux through the smaller sphere.     The net flux through the larger sphere is one fourth the net flux through the smaller sphere.         The net flux through the larger sphere is twice the net flux through the smaller sphere.

Gaussian surface 1 has twice the area of Gaussian surface 2. Both surfaces enclose the same charge Q. Is the electric flux through surface 1 greater than, less than, or the same as the electric flux through surface 2?

The square surface shown in the figure measures 3.4 mm on each side. It is immersed in a uniform electric field with magnitude E = 1400 N/C and with field lines at an angle of 35° with a normal to the surface, as shown. Take that normal to be "outward," as though the surface were one face of a box. Calculate the electric flux through the surface. Normal 4 Number i Units