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NEET 2002
Exam
NEET
Year
2002
Subject
Physics
Chapter
Magnetic Effects of Current

NEET 2002 · Physics · Magnetic Effects of Current

A charge ' q ' moves in a region where the electric field and the...

A charge ' qq ' moves in a region where the electric field and the magnetic field both exist, then the force on it is:

Options

  1. Aq(v⃗×B⃗)q(\vec{v} \times \vec{B})
  2. BqE⃗+q(v⃗×B⃗)q \vec{E}+q(\vec{v} \times \vec{B})
  3. CqE⃗+q(B⃗×v⃗)q \vec{E}+q(\vec{B} \times \vec{v})
  4. DqE⃗+q(B⃗×v⃗)q \vec{E}+q(\vec{B} \times \vec{v})

Correct answer

B. qE⃗+q(v⃗×B⃗)q \vec{E}+q(\vec{v} \times \vec{B})

Step-by-step solution

Lorentz force F⃗v=F⃗e+F⃗m\vec{F}_v=\vec{F}_e+\vec{F}_m =qE⃗+q(V⃗×B⃗)=q \vec{E}+q(\vec{V} \times \vec{B})
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