Concept explainers
The sphere and ellipsoid in FIGURE Q24.9 surround equal charges. Four students are discussing the situation.
Student 1: The fluxes through A and B are equal because the average radius is the same.
Student 2: I agree that the fluxes are equal, but that's because they enclose equal charges.
Student 3: The electric field is not perpendicular to the surface for B, and that makes the flux through B less than the flux through A.
Student 4: I don't think that Gauss's law even applies to a situation like B, so we can't compare the fluxes through A and B. Which of these students, if any, do you agree with? Explain.
Want to see the full answer?
Check out a sample textbook solutionChapter 24 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Chs 1-42) Plus Mastering Physics with Pearson eText -- Access Card Package (4th Edition)
- The colored regions in Figure P25.21 represent four three-dimensional Gaussian surfaces A through D. The regions may also contain three charged particles, with qA + +5.00 nC, qB = 5.00 nC, and qC = +8.00 nC, that are nearby as shown. What is the electric flux through each of the four surfaces? FIGURE P25.21arrow_forwardA positively charged disk of radius R = 0.0366 m and total charge 56.8 C lies in the xz plane, centered on the y axis (Fig. P24.35). Also centered on the y axis is a charged ring with the same radius as the disk and a total charge of 34.1 C. The ring is a distance d = 0.0050 m above the disk. Determine the electric field at the point P on the y axis, where P is y = 0.0100 m above the origin. FIGURE P24.35 Problems 35 and 36.arrow_forwardA dosed surface with dimensions a = b= 0.400 111 and c = 0.600 in is located as shown in Figure 124.63. The left edge of the closed surface is located at position x = a. The electric field throughout the region is non- uniform and is given by E = (3.00 + 2.00x2)i N/C, where x is in meters. (a) Calculate the net electric flux leaving the closed surface. (b) What net charge enclosed by the surface?arrow_forward
- Two positively charged spheres are shown in Figure P24.70. Sphere 1 has twice as much charge as sphere 2. If q = 6.55 nC, d = 0.250 m, and y = 1.25 m, what is the electric field at point A?arrow_forwardA Ping-Pong paddle with surface area 3.80 102 m2 is placed in a uniform electric field of magnitude 1.10 106 N/C. a. What is the magnitude of the electric flux through the paddle when the electric field is parallel to the paddles surface? b. What is the magnitude of the electric flux through the paddle when the electric field is perpendicular to the paddles surface?arrow_forwardA Using Gausss law, find the electric flux through each of the closed Gaussian surfaces A, B, C, and D shown in Figure P25.25. FIGURE P25.25arrow_forward
- If the curved rod in Figure P24.32 has a uniformly distributed charge Q = 35.5 nC, radius R = 0.785 m, and = 60.0, what is the magnitude of the electric field at point A?arrow_forwardSolve e. Please provide correct answers in the following units.arrow_forwardTwo rings of radius R=8 cm are 50 cm apart and concentric with a common horizontal axis (figure below). Ring 1 carries a uniformly distributed charge q₁ = 70 nC and ring 2 carries a uniformly distributed charge of q2 = -40 nC. Take d=50 cm. Ring 1 9₁ Ring 2, Ө Ө R R R d 1. Find the magnitude of the electric field E₁ created by Ring 1 at point P. E₁ = [N/C] 2. What is the direction of the electric field E₁ created by Ring 1 at point P. Direction: ◆ 3 Write the expression of the electric filed E₁ created by Ring 1 at point P. Ē₁ [N/C] 92 4 Find the magnitude of the electric field E₂ created by Ring 2 at point P. [N/C] E₂ = 5. What is the direction of the electric field E₂ created by Ring 2 at point P. Direction: + 6. Write the expression of the electric filed E2 created by Ring 2 at point P. Ē₂ = [N/C] P. Ēnet 7. If vector E₁ = [N/C] and vector Ē2 = [N/C]. Find the net electric filed Enet at point > [N/C] > [N/C] 8. )If a charge q = 5 nC is placed at location P, what would be the force…arrow_forward
- pls helparrow_forwardGood morning could you help me to solve the following problem?Thanks in advanceA ring of radius a carries a uniformly distributed positive total charge. uniformly distributed. Calculate the electric field due to the ring at a point P which is at a distance x from its center, along the central axis perpendicular to the plane of the ring. Use fig. a The fig.b shows the electric field contributionsof two segments on opposite sides of the ring.arrow_forwardA collection of four charges and four Gaussian surfaces are shown in the figure. The charges have values: q1=+7.46nC q2=−7.46nC q3=+11.2nC q4=−15.8nCThe dashed lines represent the intersection of the closed three-dimensional surfaces with the plane of the image. If a charge is shown within a dashed curve, then it is contained with the corresponding surface. A. What is the electric flux, in newton squared meters per coulomb, through the first closed surface, S1? B. What is the electric flux, in newton squared meters per coulomb, through the second closed surface, S2? C. What is the electric flux, in newton squared meters per coulomb, through the third closed surface, S3? D. What is the electric flux, in newton squared meters per coulomb, through the third closed surface, S4?arrow_forward
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning