MCQ
If a charged particle kept at rest experiences an electromagnetic force:
- AThe electric field must not be zero.
- BThe magnetic field must not be zero.
- CThe magnetic field may or may not be zero.
- ✓Both $a$ and $c$
✓
Answer
Correct option: D.
Both $a$ and $c$
Since particle is at rest, i.e. $v=0,$
hence $Fm=0$
For electric force, $E\neq 0$
hence $Fm=0$
For electric force, $E\neq 0$
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