Question

When a charged particle moves at an angle of 25° with respect to a magnetic field, it experiences a magnetic force of magnitude F. At what angle (less than 90°) with respect to this field will this particle, moving at the same speed, experience a magnetic force of magnitude 2F?

90°
125°
58°
30°​

Answer 1

Explanation:

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Answer 2

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A charged particle is moving through a uniform magnetic field To find:- For no force angle between velocity and direction of magnetic field is

Solution:-

Minimum force or no force acts on the charge particle if it is either moving parallel or antiparallel to the magnetic field intensity. We know that magnetic field is given as

F=q v B sin e

Now,F is 0 for either 0°[parallel] or 180°(antiparallell.

Hence,

Correct Option {b} 0° or 180°