•35 O Figure 23-46a shows three plastic sheets that are large, paral- lel, and uniformly charged. Figure 23-46b gives the component of the net electric field along an x axis through the sheets. The scale of the vertical axis is set by E,= 6.0x 10° N/C. What is the ratio of the charge density on sheet 3 to that on sheet 2? (a) -х E, (6) E (10 N/C)

d B • 2d +20 व 2d d D - The figure above shows three very thin parallel planes of charge with equal separation 6 cm between them. The charge density of the middle plane is +4 nC/m² (nC = "nano Coulomb") and that of the two outer planes is -2nC/m². Your answers for the electric field must include the correct sign. We choose positive electric field along the positive y-direction. What is the electric field at point A? N/C Submit Answer Tries 0/2 What is the electric field at point B? N/C Submit Answer Tries 0/2 What is the electric field at point C? N/C Submit Answer Tries 0/2 What is the electric field at point D? N/C 1

•10 O In Fig. 21-25, four particles form a square. The charges are q1 = q4 = Q and q2 = q3 = q. (a) What is Qlq if the net electrostatic force on particles 1 and 4 is zero? (b) Is there any value of q that makes the a- net electrostatic force on each of the four particles zero? Explain. *11 ILW In Fig. 21-25, the particles have charges q =-q2 = 100 nC and 93 = -94 = 200 nC, and distance a = 5.0 cm. What are the (a) x and (b) y components of the net electrostatic force on particle 3? x- Figure 21-25 Problems 10, 11, and 70.

Two infinite planes of charge lie parallel to each other and to the yz plane. One is at x = -2 m and has a surface charge density of o= -4.7 µC/m². The other is at x = 4 m and has a surface charge density of o = = 4.3 µC/m². Find the electric field for the following locations. 1) x 4 m N/CÎ Submit You currently have 1 submissions for this question. Only 10 submission are allowed. You can make 9 more submissions for this question.