A positively charged particle with charge +Q passes straight through a velocity selectorwhen its velocity is v = 2 × 10* m/s. What must be changed in order for this velocityselector to allow a particle that has a charge –2Q to pass through undeflected with thissame speed?O Nothing needs to be changedThe direction of the electric field (or magnetic field)It is impossible to allow this negatively charged particle to pass throughundeflectedThe direction of both the electric and the magnetic fieldThe strength of the electric field (or magnetic field)

Given,charge +Q passes through the velocity selectorwith velocity, v = 2×104 m/s

A positively charged particle with charge +Q passes straight through a velocity selector when its velocity is v = 2 × 10* m/s. What must be changed in order for this velocity selector to allow a particle that has a charge –2Q to pass through undeflected with this same speed?

A positively charged particle with charge +Q passes straight through a velocity selector when its velocity is v = 2 × 10* m/s. What must be changed in order for this velocity selector to allow a particle that has a charge –2Q to pass through undeflected with this same speed?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter30: Magnetic Fields And Forces

Section: Chapter Questions

Problem 40PQ

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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 positively charged particle with charge +Q passes straight through a velocity selector
when its velocity is v = 2 × 10* m/s. What must be changed in order for this velocity
selector to allow a particle that has a charge –2Q to pass through undeflected with this
same speed?
O Nothing needs to be changed
The direction of the electric field (or magnetic field)
It is impossible to allow this negatively charged particle to pass through
undeflected
The direction of both the electric and the magnetic field
The strength of the electric field (or magnetic field)

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