A charged particle is released from rest in a region of a uniform magnetic field along the direction of the magnetic field. The path of the charged particle in the magnetic field will be
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → straight line
Given: A charged particle is released along the direction of a uniform magnetic field.
Magnetic force on a charged particle:
$\vec{F} = q (\vec{v} \times \vec{B})$
If velocity $\vec{v}$ is parallel or antiparallel to $\vec{B}$, then $\vec{v} \times \vec{B} = 0$, so the magnetic force is zero.
✅ Therefore, the particle moves in a straight line along the direction of the magnetic field.
Answer: Straight line along the magnetic field