A charged particle with specific charge $S$ moves undeflected through a region of space containing mutually perpendicular uniform electric and magnetic fields $E$ and $B$ . When electric field is switched off, the particle will move in a circular path of radius
A charged particle with specific charge $S$ moves undeflected through a region of space containing mutually perpendicular uniform electric and magnetic fields $E$ and $B$ . When electric field is switched off, the particle will move in a circular path of radius
- A
$\frac {E}{BS}$
- B
$\frac {ES}{B}$
- C
$\frac {ES}{B^2}$
- D
$\frac {E}{B^2S}$
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- [JEE MAIN 2022]