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A 10-cm-long thin glass rod uniformly charged to +10nC and a thin plastic rod uniformly charged to
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- A thin, square, conducting plate 50.0 cm on a side lies in the xy plane. A total charge of 4.00 108 C is placed on the plate. Find (a) the charge density on each face of the plate, (b) the electric field just above the plate, and (c) the electric field just below the plate. You may assume the charge density is uniform.arrow_forwardA circular ring of charge with radius b has total charge q uniformly distributed around it. What is the magnitude of the electric field at the center of the ring? (a) 0 (b) keq/b2 (c) keq2/b2 (d) keq2/b (e) none of those answersarrow_forwardTwo 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) 0 EA EB (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_forward
- A charge of q = 2.00 109 G is spread evenly on a thin metal disk of radius 0.200 m. (a) Calculate the charge density on the disk. (b) Find the magnitude of the electric field just above the center of the disk, neglecting edge effects and assuming a uniform distribution of charge.arrow_forward(a) Find the total electric field at x = 1.00 cm in Figure 18.52(b) given that q =5.00 nC. (b) Find the total electric field at x = 11.00 cm in Figure 18.52(b). (c) If the charges are allowed to move and eventually be brought to rest by friction, what will the final charge configuration be? (That is, will there be a single charge, double charge; etc., and what will its value(s) he?)arrow_forwardA point charge of 4.00 nC is located at (0, 1.00) m. What is the x component of the electric field due to the point charge at (4.00, 2.00) m? (a) 1.15 N/C (b) 0.864 N/C (c) 1.44 N/C (d) 1.15 N/C (e) 0.864 N/Carrow_forward
- The two spherical shell has a charge of q1=0.30nC and q2 = 0.5nC. The radius of r1=7.5cm and r2 = 2.5cm. What is the new votage value in volts, after the charge transfer is completed between the two spheres?arrow_forwardTwo parallel conducting plates, each of cross-sectional area 400.0 cm? are 2.0 cm apart and uncharged. If 1.0x102 electrons are transferred from one plate to the other, what are a) the charge density on each plate? b) the electric flux through a circle of radius 3 cm between the plates when the normal to the circle makes an angle of 5.0° with a line perpendicular to the plates.arrow_forward3.00 nC of charge is uniformly distributed along a thin rod of length L = 1.80 cm as shown in the figure. What is the magnitude of the electric field at point P, a distance r = 20.8 cm from the centre of the rod?arrow_forward
- Four concentric very long cylindrical shells (made of thin plastic) of radii a, b, c and d have charges +Q, -Q, +Q and -Q per one meter of length of cylinders, respectively. The cross-section of the cylindrical shells is shown in the figure below. Assume that charges are uniformly distributed. Determine the magnitude of the electric field at points A, B, C and D, which are at radial distances Ra, Rg, Rc and Rp, from the center of the smallest cylindrical shell. Express the answers in terms of Q, RA, R3, Rc, Rp and constants. A·B •C •D darrow_forwardEarlier in the chapter, we saw that tumbling sand and dust grains can develop an electric charge. Typically, smaller grains develop a negative charge, while larger grains develop a positive charge. The smaller grains tend to be lofted higher by the wind, as we’d expect, so when a strong, steady wind blows across a sandy landscape, a charge separation develops. This produces an electric field near the ground, which can reach values as high as 150,000 N/C. At this field strength, how does the magnitude of the electric force compareto the weight force for a typical dust particle of mass 1.8 × 10-12 kg and charge 1.2 × 10-16 C?arrow_forwardsolutions use vektorsarrow_forward
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