Consider an electron that is 1.2-10-10 m from an alpha particle with charge 3.2-10-1⁹ C. (a) What is the electric field due to the alpha particle at the location of the electron? The direction of the electric field by the alpha particle at the electron i ✓ Ela ate (b) What is the electric field due to the electron at the location of the alpha particle? The direction of the electric field by the electron at the location of the alpha particle is N C (c) What is the magnitude of the electric force on the electron? N Ele at a ko N C = (d) What is the magnitude of the electric force on the alpha particle? F_= N (e) Do the two forces obey Newton's Laws? radially outward from the alpha particle radially inward towards the alpha particle

Consider an electron that is 1.2-10-10 m from an alpha particle with charge 3.2-10-1⁹ C. (a) What is the electric field due to the alpha particle at the location of the electron? The direction of the electric field by the alpha particle at the electron i ✓ Ela ate (b) What is the electric field due to the electron at the location of the alpha particle? The direction of the electric field by the electron at the location of the alpha particle is N C (c) What is the magnitude of the electric force on the electron? N Ele at a ko N C = (d) What is the magnitude of the electric force on the alpha particle? F_= N (e) Do the two forces obey Newton's Laws? radially outward from the alpha particle radially inward towards the alpha particle

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter22: Electric Fields

Section: Chapter Questions

Problem 31AP: A small block of mass m and charge Q is placed on an insulated, frictionless, inclined plane of...

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Lightning can be studied with a Van de Graaff generator, which consists of a spherical dome on which charge is continuously deposited by a moving belt. Charge can be added until the electric field at the surface of the dome becomes equal to the dielectric strength of air. Any more charge leaks off in sparks as shown in Figure P25.52. Assume the dome has a diameter of 30.0 cm and is surrounded by dry air with a "breakdown" electric field of 3.00 106 V/m. (a) What is the maximum potential of the dome? (b) What is the maximum charge on the dome?
An electron is to be accelerated in a uniform electric field having a strength of 2.00106 V/m. (a) What energy in keV is given to the electron if it is accelerated through 0.400 m? (b) Over what distance would it have to be accelerated to increase its energy by 50.0 GeV?
An electron is to be accelerated in a uniform electric field having a strength of 2.00106 V/m. (a) What energy in keV is given to the electron if it is accelerated through 0.400 m? (b) Over what distance would it have to be accelerated to increase its energy by 50.0 GeV?
Three charged particles are aligned along the x axis as shown in Figure P22.35. Find the electric field at (a) the position (2.00 m, 0) and (b) the position (0, 2.00 m). Figure P22.35
Two square plates of sides are placed parallel to each other with separation d as suggested in Figure P25.39. You may assume d is much less than . The plates carry uniformly distributed static charges +Q0 and Q0. A block of metal has width , length , and thickness slightly less than d. It is inserted a distance x into the space between the plates. The charges on the plates remain uniformly distributed as the block slides in. In a static situation, a metal prevents an electric field from penetrating inside it. The metal can he thought of as a perfect dielectric, with . (a) Calculate the stored energy in the system as a function of x. (b) Find the direction and magnitude of the force that acts on the metallic block. (c) The area of the advancing front face of the block is essentially equal to d. Considering the force on the block as acting on this face, find the stress (force per area) on it. (d) Express the energy density in the electric field between the charged plates in terms of Q0, , d, and 0. (e) Explain how the answers to parts (c) and (d) compare with each other. Figure P25.39
(a) Find the magnitude and direction of the electric field at the position of the 2.00 C charge in Figure P13.13. (b) How would the electric field at that point be affected if the charge there were doubled? Would the magnitude of the electric force be affected?
Review. From a large distance away, a particle of mass m1, and positive charge q1 is fired at speed in the positive x direction straight toward a second particle, originally stationary but free to move, with mass m2, and positive charge q2. Both particles are constrained to move only along the x axis. (a) At the instant of closest approach, both particles will be moving at the same velocity. Find this velocity, (b) Find the distance of closest approach. After the interaction, the particles will move far apart again. At this time, find the velocity of (c) the particle of mass m1, and (d) the particle of mass m2.
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A small block of mass m and charge Q is placed on an insulated, frictionless, inclined plane of angle as in Figure P22.31. An electric field is applied parallel to the incline. (a) Find an expression for the magnitude of the electric field that enables the block to remain at rest. (b) If m = 5.40 g, Q = 7.00 C, and = 25.0, determine the magnitude and the direction of the electric field that enables the block to remain at rest on the incline. Figure P22.31