13. You have decided to use a magnetic field in combination with an electric field as a switch to either make a beam of electrons pass straight through a certain region of an apparatus or to curve 90° and go through an auxiliary portion of the apparatus. The beam of electrons travels to the right at a speed of 4.8 x 106 m/s and you designed the electric field (8400 V/m) to be oriented 10⁰ vertically up. a) When the electric field is on, what strength of B-field is necessary for the beam to travel un-deflected? (Note: You can ignore gravity.) b) What is the orientation of the B-field? c) When the electric field is turned off, how long does it take an electron to turn into the auxiliary apparatus?

13. You have decided to use a magnetic field in combination with an electric field as a switch to either make a beam of electrons pass straight through a certain region of an apparatus or to curve 90° and go through an auxiliary portion of the apparatus. The beam of electrons travels to the right at a speed of 4.8 x 106 m/s and you designed the electric field (8400 V/m) to be oriented 10⁰ vertically up. a) When the electric field is on, what strength of B-field is necessary for the beam to travel un-deflected? (Note: You can ignore gravity.) b) What is the orientation of the B-field? c) When the electric field is turned off, how long does it take an electron to turn into the auxiliary apparatus?

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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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

13. You have decided to use a magnetic field in combination with an electric field as a switch to
either make a beam of electrons pass straight through a certain region of an apparatus or to curve
90° and go through an auxiliary portion of the apparatus. The beam of electrons travels to the
right at a speed of 4.8 x 106 m/s and you designed the electric field (8400 V/m) to be oriented
10⁰
vertically up.
a) When the electric field is on, what strength of B-field is necessary for the beam to travel
un-deflected? (Note: You can ignore gravity.)
b) What is the orientation of the B-field?
c) When the electric field is turned off, how long does it take an electron to turn into the
auxiliary apparatus?

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