A) if both electric and magnetic fields are normal to\[\vec{v}\]
B) if the magnetic field alone in normal to v
C) if both electric and magnetic fields are parallel to \[\vec{v}\]
D) if the electric field alone is normal to \[\vec{v}\]
Correct Answer: A
Solution :
When\[E\ne 0\]and\[B\ne 0\]and E, B and motion of proton (v) are mutually perpendicular, there may be no net force. Force due to E and B cancel each other.You need to login to perform this action.
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