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4. Moving charges and magnetism — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics4. Moving charges and magnetism1 Mark
MCQ
A magnetic field
  • A
    Always exerts a force on a charged particle
  • B
    Never exerts a force on a charged particle
  • ✓
    Exerts a force, if the charged particle is moving across the magnetic field lines
  • D
    Exerts a force, if the charged particle is moving along the magnetic field lines
✓

Answer

Correct option: C.
Exerts a force, if the charged particle is moving across the magnetic field lines
c
(c)$\overrightarrow F = q\overrightarrow {v\,} \times \overrightarrow B $

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