Plastic beads can often carry a small charge and therefore can generate electric fields. Three beads are oriented such that 92 is between 9, and 93. The sum of the charge on 9, and 92 is 91 + 92 = -8.8 µC, and the net charge of the system of all three beads is zero. E field lines What charge does each bead carry? -17.6 91 = What is the net charge of the system? What charges have to be equal? µC 8.8 92 = What is the net charge of the system? What charges have to be equal? µc 93 = 8.8 V HC

Plastic beads can often carry a small charge and therefore can generate electric fields. Three beads are oriented such that 92 is between 9, and 93. The sum of the charge on 9, and 92 is 91 + 92 = -8.8 µC, and the net charge of the system of all three beads is zero. E field lines What charge does each bead carry? -17.6 91 = What is the net charge of the system? What charges have to be equal? µC 8.8 92 = What is the net charge of the system? What charges have to be equal? µc 93 = 8.8 V HC

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter18: Electric Charge And Electric Field

Section: Chapter Questions

Problem 51PE: (a) What is the electric field 5.00 m from the center of the terminal of a Van de Graaff with a 3.00...

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Panicle A of charge 3.00 104 C is at the origin, particle B of charge 6.00 104 C is at (4.00 m, 0), and panicle C of charge 1.00 104 C is at (0, 3.00 m). (a) What is the x-component of the electric force exerted by A on C? (b) What is the y-component of the force exerted by A on C? (c) Find the magnitude of the force exerted by B on C. (d) Calculate the x-component of the force exerted by B on C. (e) Calculate the y-component of the force exerted by B on C. (f) Sum the two x-components to obtain the resultant x-component of the electric force acting on C. (g) Repeat part (f) for the y-component. (h) Find the magnitude and direction of the resultant electric force acting on C.
Panicle A of charge 3.00 104 C is at the origin, particle B of charge 6.00 104 C is at (4.00 m, 0), and panicle C of charge 1.00 104 C is at (0, 3.00 m). (a) What is the x-component of the electric force exerted by A on C? (b) What is the y-component of the force exerted by A on C? (c) Find the magnitude of the force exerted by B on C. (d) Calculate the x-component of the force exerted by B on C. (e) Calculate the y-component of the force exerted by B on C. (f) Sum the two x-components to obtain the resultant x-component of the electric force acting on C. (g) Repeat part (f) for the y-component. (h) Find the magnitude and direction of the resultant electric force acting on C.
(a) What is the electric field 5.00 m from die center of the terminal of a Van de Graaff with a 3.00-mC charge, noting that the field is equivalent to that of a point charge at the center of the terminal? (b) At this distance, what force does the field exert on a 2.00C charge on the Van de Graaff’s belt?
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).
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