A negatively charged particle is moving with a constant velocity directed downward through a region of a uniform magnetic field B directed into the page as shown in the figure. In which direction must an electric field be applied to keep the particle moving along a straight line?

A negatively charged particle is moving with a constant velocity directed downward through a region of a uniform magnetic field B directed into the page as shown in the figure. In which direction must an electric field be applied to keep the particle moving along a straight line?

Physics for Scientists and Engineers

10th Edition

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter28: Magnetic Fields

Section: Chapter Questions

Problem 16P: Singly charged uranium-238 ions are accelerated through a potential difference of 2.00 kV and enter...

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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

A negatively charged particle is moving with a constant velocity 7 directed downward
through a region of a uniform magnetic field B directed into the page as shown in the figure.
In which direction must an electric field be applied to keep the particle moving along a
straight line?
i
XB
Select one:
a.Into the page
b. To the leftin the plane of the page
c. Upward
d.Downward
e. Out of the page
f.To the right in the plane of the page

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