If a negatively charged particle moves through a magnetic field, which is true?

Question

If a negatively charged particle moves through a magnetic field, which is true?



a. The magnetic force is in the direction of the cross product of the velocity vector and the magnetic field vector.


b. The magnetic force is in the direction of the dot product of the velocity vector and the magnetic field vector.


c. The magnetic force is in the direction opposite that of the cross product of the velocity vector and the magnetic field vector.


d. The magnetic force is in the direction opposite that of the dot product of the velocity vector and the magnetic field vector.

Explanation / Answer

force=F=q*(vXB) v=velocity for negative charge F=-q*(vXB) thus c. The magnetic force is in the direction opposite that of the cross product of the velocity vector and the magnetic field vector. is true.......

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