A point charge q sits in the center of a cube. What happens to the total electric flux through the surface of the cube if a) the volume of the cube is quadrupled? b) the surface is changed to a sphere? c) the charge is moved outside the cube? d) the charge is doubled, but goes back to the center of the cube?

A thick, conducting, spherical shell with inner radius 0.5 m and outer radius 1.5 m has a net charge 5 C. Also, there is a 3 C point charge at the center as shown. Calculate the surface charge density on the outer surface of the thick conducting shell. Answer in C/m² (Coulomb per square meter). 5 С 3 C 0.5 m 1.5 m

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Ā UESTION 19 Three charged particles are fixed in place, as shown in figure, with charges q1 +1.60 x 10-19 C, q2 = +32 x 10-19 C and q3= -3.2 x 10-19 C. The net force (magnitude and direction with respect to +x-axis) on particle 1 due to the other two charges is (Distance R = 0.020 m and angle 0 = 60°) 93 0.75R 116 R- O A 5.88 x 10-19 N and 103.2° OB. 1.78 x 10-24 N and 94.1⁰ OC.4.32 x 10-19 N and 13.4° OD.3.13 x 10-24 N and 47.10 E. 3.22 x 10-24 N and 136.30 " " "" A e of -14 x 10-6 C on its outer surface Answers