Figure P19.29a is a diagram of a device called a velocity selector, in which particles of a specific velocity pass through undeflected while those with greater or lesser velocities are deflected either upwards or downwards. An clectric field is directed perpendicular to a magnetic field, producing an electric force and a magnetic force on the charged particle that can be equal in magnitude and opposite in direction (Fig. P19.29b) and hence cancel. Show that particles with a speed of v= E/B will pass through the velocity selector undeflected. Source quB Slit (a) (b) Figure P19.29

Figure P19.29a is a diagram of a device called a velocity selector, in which particles of a specific velocity pass through undeflected while those with greater or lesser velocities are deflected either upwards or downwards. An clectric field is directed perpendicular to a magnetic field, producing an electric force and a magnetic force on the charged particle that can be equal in magnitude and opposite in direction (Fig. P19.29b) and hence cancel. Show that particles with a speed of v= E/B will pass through the velocity selector undeflected. Source quB Slit (a) (b) Figure P19.29

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

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Figure P19.29a is a diagram of a device called a velocity
selector, in which particles of a specific velocity pass
through undeflected while those with greater or lesser
velocities are deflected either upwards or downwards. An
clectric field is directed perpendicular to a magnetic field,
producing an electric force and a magnetic force on the
charged particle that can be equal in magnitude and
opposite in direction (Fig. P19.29b) and hence cancel.
Show that particles with a spced of v= E/B will pass
through the velocity selector undeflected.
Source
quB
Slit
(a)
(b)
Figure P19.29
to
xx x X

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