A) angle between \[\vec{v}\] and \[\vec{B}\] is necessarily 90°
B) angle between \[\vec{v}\] and \[\vec{B}\] can have any value other than 90°
C) angle between \[\vec{v}\] and \[\vec{B}\] can have any value other than zero and 180°
D) angle between \[\vec{v}\] and \[\vec{B}\] is either zero or \[{{180}^{o}}\]
Correct Answer: C
Solution :
When a charged particle q is moving in a uniform magnetic field \[\vec{B}\] with velocity \[\vec{v}\] such that angle between \[\vec{v}\] and \[\vec{B}\] be \[\theta \], then due to interaction between the magnetic field produced due to moving charge and magnetic field applied, the charge q experiences a force which is given by \[F=qvB\sin \theta \] If \[\theta ={{0}^{o}}\]or \[{{180}^{o}}\], then sin \[\theta =0\] \[\therefore \] \[F=qvB\sin \theta \] Since, force on charged particle is non-zero, so angle between \[\vec{v}\] and \[\vec{B}\] can have any value other than zero and \[{{180}^{\text{o}}}\].
You need to login to perform this action.
You will be redirected in
3 sec
