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Most Important Selected Qs for JEE AdvancedPhysicsMagnetic Effects of Current

Paragraph: As a charged particle q moving with a velocity v enters a uniform magnetic field B , it experiences a force f = q ( v B ) . For =0^ or 180^ , being the angle between v and B , force experienced is zero and the particle passes undeflected. For =90^ , the particle moves along a circular arc and the magnetic force (qvB) provides the necessary centripetal force ( mv ^2 r ) . For other values of ( 0^ . , 180^ ,

Options

  1. Amotion of the particle is non-periodic but y and z - position co-ordinates vary in a periodic manner
  2. Bmotion of the particle is non-periodic but x and y - position co-ordinates vary in a periodic manner
  3. Cmotion of the particle is non-periodic but x and z - position co-ordinates vary in a periodic manner
  4. Dmotion of the particle is periodic and all the position co-ordinates vary in a periodic manner

Correct answer

B. motion of the particle is non-periodic but x and y - position co-ordinates vary in a periodic manner

Step-by-step solution

Pitch will be around z-axis.

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