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JEE Main202313 Apr 2023Evening ShiftPhysicsMagnetic Effects of CurrentActual

An electron is moving along the positive x-axis. If uniform magnetic field is applied parallel to the negative z-axis, then A.The electron will experience magnetic force along positive y-axis B.The electron will experience magnetic force along negative y-axis C.The electron will not experience any force in magnetic field D.The electron will continue to move along the positive x-axis E.The electron will move along cir

Options

  1. AA and E only
  2. BC and D only
  3. CB and E only
  4. DB and D only

Correct answer

C. B and E only

Step-by-step solution

The Lorentz force is given by F → = q v → × B → = - e v → × B → So, F ^ = i ^ × k ^ = - j ^ . F →   is    along  - y  axis  As the magnetic field is perpendicular to the velocity, motion would be circular.

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