Difference between F=qE and F=q(V*B)

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  • #1
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what is the difference between these two forces ?

F=qE and F=q(V*B)
 

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  • #2
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The former is the expression for the electric force acting on an object of charge q placed in an electric field of field strength E, while the latter is the expression for the magnetic force acting on an object possessing charge q moving with velocity v in the region of a magnetic field with field strength B.
 
  • #3
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what is the difference between these two forces ?

F=qE and F=q(V*B)
The first is just a vector relation for a charge in an electric field. The second is the Lorentz force on a moving charged particle in a magnetic field. The latter equation is a vector cross product, meaning that F is perpendicular to both the velocity vector and the magnetic field vector.

Bob S
 
  • #4
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thanks alot..tomorrow is my exam and i wanted to study about these forces and their differences :)
 

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