An electron is projected in a uniform magnetic field along the direction of field, the electron will experience:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → no force in magnetic field
The force on a charged particle in magnetic field is,
$F=q(v×B)$
As v is parallel (or anti-parallel) to B,
$(v×B)=0$
$⇒F=q(v×B)$
$=0$