A certain electric dipole consists of charges +q and –q separated by distance d, oriented along the x-axis as shown in the figure. Find an expression for the magnitude of the electric field E of the dipole at a point far away in the y-direction, a distance r away from the midpoint of the dipole. Assume that r is much greater than d. Enter your answer in terms of q, d, r, and €o. E = +9 Figure is not to scale.

Part A What is the magnitude of the electric field at a distance from the sphere's center of 0.350 m ? |E₁|= 0 N/C Submit Part B Correct What is the magnitude of the electric field at a distance from the sphere's center of 2.40 m ? |E₂| = 0 N/C Submit Part C Previous Answers Part D Submit Previous Answers Correct What is the magnitude of the electric field at a distance from the sphere's center of 2.65 m ? |E₁|= 2820 N/C Previous Answers Correct What is the magnitude of the electric field at a distance from the sphere's center of 9.00 m ? |E₁| = 244 N/C

The picture on the right shows a plate capacitor. You may assume that the two plates are very large compared to the separation between the plates (i.e. you may treat them as 'infinite' planes). The plates are charged to ±Q, each plate has an area of A, and the plates are separated by a distance d. The x-axis in this problem is pointing from the negative to the positive plate, with the origin at the negative plate. The electric field at point 2 has a magnitude of E. E=3000 A=1 m² d = 8 mm c. What is the electric field strength at point 1? d. What is the charge Q on the plates? ·area A IT +Q €0=8.85 x 10-12 -a X=0 e. What is the electric field strength at point 3? Part A: a. In the picture, sketch the electric field between the plates by drawing the field lines. b. Find the surface charge density n on each plate. Nm² 12 x(mm)

In Configuration 1 below, what is the magnitude of the predicted electric field at point b? Point b is 2.00 m from the +3.00 nC charge (this is also in your lab procedure). Pt. a Pt. b Pt. c +3 nC figure 1 a Your answer should: Be in the Correct SI Units of N/C Be rounded to 2 Decimal Places For this problem you can't enter a number in Scientific Notation (the program doesn't allow it). For example: 2.06 x 102 would be written as 206.00