COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 16, Problem 81QAP
To determine
The electric field at the center of the hexagon.
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19 Figure 22-45 shows an electric dipole. What are the (a) magni-
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d/2
d/2
EXAMPLE 16-4 Electric force using vector components. Calculate the
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86 Figure 24-68 shows a hemi-
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tributed uniformly through its vol-
ume. The hemisphere lies on an xy x
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Figure 24-68 Problem 86.
lie face down on a kitchen table.
Point Pis located on the plane, along a radial line from the hemi-
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Chapter 16 Solutions
COLLEGE PHYSICS
Ch. 16 - Prob. 1QAPCh. 16 - Prob. 2QAPCh. 16 - Prob. 3QAPCh. 16 - Prob. 4QAPCh. 16 - Prob. 5QAPCh. 16 - Prob. 6QAPCh. 16 - Prob. 7QAPCh. 16 - Prob. 8QAPCh. 16 - Prob. 9QAPCh. 16 - Prob. 10QAP
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- Consider n equal positively charged particles each of magnitude Q/n placed symmetrically around a circle of radius a. (a) Calculate the magnitude of the electric field at a point a distance x from the center of the circle and on the line passing through the center and perpendicular to the plane of the circle. (b) Explain why this result is identical to the result of the calculation done in Example 23.8.arrow_forward(a) Using the symmetry of the arrangement, determine the direction of the electric field at the center of the square in Figure 18.53, given that qa= 1.00C and qc=qd= +1.00 C. (b) Calculate the magnitude of the electric field at the location of q, given that the square is 5.00 cm on a side.arrow_forwardExample 23.3 derives the exact expression for the electric field at a point on the axis of a uniformly charged disk. Consider a disk of radius R = 3.00 cm having a uniformly distributed charge of +5.20 C. (a) Using the result of Example 23.3, compute the electric field at a point on the axis and 3.00 mm from the center. (b) What If? Explain how the answer to part (a) compares with the field computed from the near-field approximation E = /20. (We derived this expression in Example 23.3.) (c) Using the result of Example 23.3, compute the electric field at a point on the axis and 30.0 cm from the center of the disk. (d) What If? Explain how the answer to part (c) compares with the electric field obtained by treating the disk as a +5.20-C charged particle at a distance of 30.0 cm.arrow_forward
- Two solid spheres, both of radius 5 cm. carry identical total charges of 2 C. Sphere A is a good conductor. Sphere B is an insulator, and its charge is distributed uniformly throughout its volume, (i) How do the magnitudes of the electric fields they separately create at a radial distance of 6 cm compare? (a) EA EB= 0 (b) EA EB 0 (c) EA = EB 0 (d) 0EAEB (e) 0 = Ea EB (ii) How do the magnitudes of the electric fields they separately create at radius 4 cm compare? choose from the same possibilities as in part (i).arrow_forwardRank the electric fluxes through each gaussian surface shown in Figure OQ19.7 from largest to smallest. Display any cases of equality in your ranking. Figure OQ19.7arrow_forward(a) Using the symmetry of the arrangement, show that the electric field at the center of the square in figure 18.46 is zero if the charges on the four comers are exactly equal. (b) Show that this is also true for any combination of charges in which qa= qd and qa = qcarrow_forward
- (a) Find the electric field at x = 5.00 cm in Figure 18.52 (a), given that q = 1.00 C. (b) at what position between 3.00 and 8.00 cm is the total electric field the same as that for ? 2q alone? (c) Can the electric field be zero anywhere between 0.00 and 8.00 cm? (d) At very large positive or negative values of x, the electric field approaches zero in both (a) and (b). In which does it most rapidly approach zero and why? (e) At what position to the light of 11.0 cm is the total electric field zero, other than at infinity? (Hint: A graphing calculator can yield considerable insight in this problem.)arrow_forwardA uniform electric field of 1.00 N/C is set up by a uniform distribution of charge in the xy plane. What is the electric field inside a metal ball placed 0.500 m above the xy plane? (a) 1.00 N/C (b) -1.00 N/C (c) 0 (d) 0.250 N/C (e) varies depending on the position inside the ballarrow_forward14 Figure 22-33 shows five protons that are launched in a uni- form electric field E; the magnitude and direction of the launch ve- locities are indicated. Rank the protons according to the magni- tude of their accelerations due to the field, greatest first. 3 m/s 5 m/s 7 m/s 10 m/s 16 m/s Figure 22-33 Question 14.arrow_forward
- 4 Figure 22-25 shows four (1) -e situations in which four te +e charged particles are evenly spaced to the left and right (2) of a central point. The te te charge values are indicated. Rank the situations accord - (3) te te te ing to the magnitude of the net electric field at the (4) central point, greatest first. te -earrow_forwardAPSC 112: Electric Fields Problem 3:5 Four particles are arranged in a square with side lengths of 0.06 m as shown in the figure. What is the net electric field at the centre of the square assuming q=1.6 x 10-19 C? (E = 1.13 x 10-6 N/C [left] ) Problem 3:6 and of shown in the figure. If q = 1.6 × 10-¹⁹ C. +29 -29 +q 0.06m 0.25m -q +29 0.06m -q X +4qarrow_forwardResources Lx Give Up? An electron is located on the x-axis at xo -9.17 x 10 m. Find the magnitude and direction of the electric field at x = 7.21 x 10 m on the x-axis due to this electron. magnitude: N/C direction: neither of these O positive x-direction negative x-directionarrow_forward
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Electric Fields: Crash Course Physics #26; Author: CrashCourse;https://www.youtube.com/watch?v=mdulzEfQXDE;License: Standard YouTube License, CC-BY