In an old-fashioned television, a beam of electrons isaccelerated to a speed of 2.3 × 106 m /s and thendirected to the flat screen, a distance d = 0.05 m fromthe end of the accelerator, using magnets, as shown inthe figure below. The mass of an electron is 9.1 ×10-31 kg.a. An electron, having just left the accelerator andtraveling in the x direction, enters a region ofuniform magnetic field, B = 1.5 x 10-4 T in they direction. What is the force on the electrondue to the magnetic field? Be sure to specifyboth the magnitude and direction.b. What is the radius of curvature of the path ofthe electron as it moves from the accelerator tothe screen?c. With what speed does the electron hit thescreen?d. How far from the center of the screen does theelectron hit? That is, how far is the electrondeflected by the magnetic field?Вyacceleratord

Given data: v=2.3×106 m/sd=0.05 mme=9.1×10-31 kgB=1.5×10-4 T

In an old-fashioned television, a beam of electrons is accelerated to a speed of 2.3 × 106 m /s and then directed to the flat screen, a distance d = 0.05 m from the end of the accelerator, using magnets, as shown in the figure below. The mass of an electron is 9.1 × 10-31 kg.

In an old-fashioned television, a beam of electrons is accelerated to a speed of 2.3 × 106 m /s and then directed to the flat screen, a distance d = 0.05 m from the end of the accelerator, using magnets, as shown in the figure below. The mass of an electron is 9.1 × 10-31 kg.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

In an old-fashioned television, a beam of electrons is
accelerated to a speed of 2.3 × 106 m /s and then
directed to the flat screen, a distance d = 0.05 m from
the end of the accelerator, using magnets, as shown in
the figure below. The mass of an electron is 9.1 ×
10-31 kg.
a. An electron, having just left the accelerator and
traveling in the x direction, enters a region of
uniform magnetic field, B = 1.5 x 10-4 T in the
y direction. What is the force on the electron
due to the magnetic field? Be sure to specify
both the magnitude and direction.
b. What is the radius of curvature of the path of
the electron as it moves from the accelerator to
the screen?
c. With what speed does the electron hit the
screen?
d. How far from the center of the screen does the
electron hit? That is, how far is the electron
deflected by the magnetic field?
В
y
accelerator
d

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