For a charge moving into the magnetic field,magnetic force on the charge will be minimumwhenO a. velocity becomes zeroO b. v and B are parallel/ antiparallelv and B are perpendicularС.o d. magnetic field becomes zero

Relationship between magnetic force (F) , magnetic field (B) and charge (q) is : F = qvB sinθ

For a charge moving into the magnetic field, magnetic force on the charge will be minimum when O a. velocity becomes zero b. v and B are parallel/ antiparallel O C. v and B are perpendicular O d. magnetic field becomes zero

For a charge moving into the magnetic field, magnetic force on the charge will be minimum when O a. velocity becomes zero b. v and B are parallel/ antiparallel O C. v and B are perpendicular O d. magnetic field becomes zero

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter11: Magnetic Forces And Fields

Section: Chapter Questions

Problem 23P: An electron moving at 4.00103 m/s in a 1.25-T magnetic field experiences a magnetic force of...

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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

For a charge moving into the magnetic field,
magnetic force on the charge will be minimum
when
O a. velocity becomes zero
O b. v and B are parallel/ antiparallel
v and B are perpendicular
С.
o d. magnetic field becomes zero

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