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Moving Charges and Magnetism

  1. When a charged particle moving with velocity v is subjected to a magnetic field of induction B, the force on it is non-zero. This implies that​​
    1. angle between v and B can have any value other than 90° ​
    2. angle between v and B can have any value other than zero and 180°
    3. angle between v and B is either zero or 180°
    4. angle between v and B is necessarily 90°
Correct Option: B

​Force on a particle moving with velocity v in a magnetic field  B is F = q(v × B)
​If angle between v & B is either zero or 180º, then value of F will be zero as cross product of v and B will be zero. ​
So option (b) is correct.



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