A) \[{{0}^{o}}\]
B) \[{{45}^{o}}\]
C) \[{{90}^{o}}\]
D) \[{{180}^{o}}\]
Correct Answer: C
Solution :
Key Idea: Maximum force is experienced when angle between \[v\] and \[B\] is\[{{90}^{o}}\]. Force experienced by a particle of change \[q\], travelling with velocity \[v\] in magnetic field \[B\] is given by \[F=qvB\sin \theta \] where \[\theta \] is angle between \[v\] and \[B\] \[\therefore \] \[{{F}_{m}}=qvB\sin {{90}^{o}}=qvB\]You need to login to perform this action.
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