A Y_ d A d B • +20 2d d 2d d The figure above shows three very thin parallel planes of charge with equal separation 12 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 int 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
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- Two pairs of charges are shown in (Figure 1). Figure AB (b) | II II E F CD I 1 A B C I D ** I E 1 F + I G H I I J I I GHIJ I Part A At which point or points is the electric field zero in (Figure 1)(a)? Enter the letter or letters of the points in alphabetical order without commas. If there are no points where the electric field is zero, enter 0. E,F Submit Previous Answers Request Answer * Incorrect; Try Again; 12 attempts remaining Part B At which point or points is the electric field zero in (Figure 1)(b)? Enter the letter or letters of the points in alphabetical order without commas. If there are no points where the electric field is zero, enter 0. 8.5 Submit Previous Answers Request Answer X Incorrect; Try Again; 14 attempts remaining Reviewx=+2L x=0 x=+L P A non-conducting rod is along the x-axis between x=0 and x=+L. The linear charge density of the rod is given by 1 = Ax, where A is a constant. Which of the followings are true for this system? I. The unit of A may be C/m. AL2 II. The total charge of the rod is 2 A III. The electric field strength at P is (1 – In(2)) Απεο A IV. The electric field strength at P is - (In(4) – 1) 4πεοTwo parallel, thin, L×L conducting plates are separated by a distance d. Let L=1.7 m, and d=2.0 mm. A charge of +6.5μC is placed on one plate, and a charge of −6.5μC is placed on the other plate a. What is the magnitude of charge density on the inside surface of each plate, in coulombs per square meter? b. What is the magnitude of the electric field between the plates?
- A 3-D printer lays down a semicircular arc of positively charged plastic with a radius R = 2.8 cm, and a linear charge density of λ = +1.6 μC/m. After the printer has finished the arc, the stylus moves to the center of the arc as shown. The minute segment of the plastic arc highlighted in the diagram subtends an angle dθ. 1. Input an expression for the charge dq on the segment of size dθ in terms of given parameters. 2. Input an expression for the electric field vector, dE, generated at the center of the arc by the minute segment of plastic subtending the arc dθ. Express your answer in terms of given parameters, the Coulomb constant k, and the unit vectors i and j. 3. Evaluate the expression from part (b) as an indefinite integral to determine the x-component of the electrical field, Ex, at the center of the arc generated by the entire line of charged plastic. 4. Select the limits of integration that would result in the correct calculation of the electric field at the center of the…Two large, nonconducting plates are suspended 8.51 cm apart. Plate 1 has an area charge density of +86.8 µC/m², and plate Plate 1 Plate 2 2 has an area charge density of +10.1 µC/m2. Treat each plate as an infinite sheet. How much electrostatic energy UF is stored in 3.79 cm of the space in region A? Region A Region B Region C UF = J %3D What volume V of the space in region B stores an equal amount of energy? V = cm3Two charges are located in space as shown a. Q₁ = -30 μC 5 m A 4 m Q₂ = 8 μC What is the electric field at A? (magnitude and direction) b. If you placed a 6 μC charge at A, what will be the force (magnitude and direction) on that charge?
- How do you find the total charge?Point charge A is on the x-axis at z = -3.00 cm. At x = 1.00 cm on the x-axis its electric field is 2700 N/C. Point charge B is also on the x-axis, at a = 5.00 cm. The absolute magnitude of charge B is twice that of A. Part A Find the magnitude and direction of the total electric field at the origin if both A and B are positive. Express your answer in newtons per coulomb. Enter positive value if the field points in +x-direction and negative value if the field points in -x-direction. Ez = N/C Part B Find the magnitude and direction of the total electric field at the origin if both A and B are negative. Express your answer in newtons per coulomb. Enter positive value if the field points in +x-direction and negative value if the field points in -x-direction. E = N/CAn infinitely long object consists of an inner cylinder of radius a which has a uniform positive volume charge density p > 0 and a concentric thin cylinder of radius b which has a uniform negative surface charge density o0 Figure 7: A cross-sectional view of two cylinders c) Calculate the electric field for r > b. b 0 <0 d) Calculate the electric potential difference for rSuppose Q1 = 6.0 nC and Q2 = 7.0 nC (Figure 1). You may want to review (Pages 631 - 635). Figure +2₁ 10 cm 5.0 cm +2₂ y -X Part B What is the direction of the electric field at the position indicated by the dot in (Figure 1)? Specify the direction as an angle measured counterclockwise from the positive x axis. — ΑΣΦ 0 = 8.08 Submit C Provide Feedback Previous Answers Request Answer ? X Incorrect; Try Again; 3 attempts remaining O Next >Two circular plates, each with a radius of 6.22 cm, have equal and opposite charges of magnitude 3.652 µC. Calculate the electric field between the two plates. Assume that the separation distance is small in comparison to the diameter of the plates. electric field: N/C The plates are slowly pulled apart, doubling the separation distance. Again, assume the separation distance remains small in comparison to the diameter of the plates. What changes occur with the electric field between the plates? The electric field decreases by a factor of 4. The electric field increases by a factor of 2. The electric field decreases by a factor of 2. The electric field increases by a factor of 4. The electric field stays the same.A Van de Graaff generator has a 0.045 mC charge on its conducting spherical terminal. a.What is the magnitude of the electric field 2.7 m from the center of the terminal of the Van de Graaff generator? Since that distance is greater than the radius of the terminal, the field is the same as that due to the same charge concentrated at the center. Give your answer in newtons per coulomb. b. At this distance, what is the magnitude of the force that the field exerts on a 2.1 μC point charge on the Van de Graaff generator's belt? Give your answer in newtons.SEE MORE QUESTIONS