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Question: Answered & Verified by Expert
A charge ' $q$ ' moves in a region where the electric field and the magnetic field both exist, then the force on it is:
PhysicsMagnetic Effects of CurrentNEETNEET 2002
Options:
  • A $q(\vec{v} \times \vec{B})$
  • B $q \vec{E}+q(\vec{v} \times \vec{B})$
  • C $q \vec{E}+q(\vec{B} \times \vec{v})$
  • D $q \vec{E}+q(\vec{B} \times \vec{v})$
Solution:
1970 Upvotes Verified Answer
The correct answer is: $q \vec{E}+q(\vec{v} \times \vec{B})$
Lorentz force $\vec{F}_v=\vec{F}_e+\vec{F}_m$
$=q \vec{E}+q(\vec{V} \times \vec{B})$

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