A charge ' $q$ ' moves in a region where the electric field and the magnetic field both exist, then the…

A charge ' $q$ ' moves in a region where the electric field and the magnetic field both exist, then the force on it is:
  1. $q(\vec{v} \times \vec{B})$
  2. $q \vec{E}+q(\vec{v} \times \vec{B})$
  3. $q \vec{E}+q(\vec{B} \times \vec{v})$
  4. $q \vec{E}$

Solution

Lorentz force $\vec{F}_v=\vec{F}_e+\vec{F}_m$ $=q \vec{E}+q(\vec{V} \times \vec{B})$

Asked in: NEET 2002

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