A positive charge moving with a constant velocity v enters a region of a uniform magnetic field pointing out the page. What is the direction of the magnetic force on the charge? + B Select one: O a. Left O b. Right O c. To the top of the page O d. To the bottom of the page

A positive charge moving with a constant velocity v enters a region of a uniform magnetic field pointing out the page. What is the direction of the magnetic force on the charge? + B Select one: O a. Left O b. Right O c. To the top of the page O d. To the bottom of the page

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter24: Magnetic Fields

Section24.2: Forces Caused By Magnetic Fields

Problem 21PP

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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 positive charge moving with a constant velocity v enters a region of a uniform magnetic field pointing out the
page. What is the direction of the magnetic force on the charge?
B
Select one:
O a. Left
O b. Right
O c. To the top of the page
O d. To the bottom of the page

An electron passes a magnetic field parallel to it (4jlg) then
Select one:
O a. nothing change ( )
O b. speed down (4ie w Jäs)
O c. change it direction
O d. it will speed up (e y ala j)

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