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An electron and proton enter a uniform magnetic field perpendicular. Both have same kinetic energy. Which of the following is true?
  • a)
    Both trajectories are equally curved
  • b)
    Trajectory of proton is less curved
  • c)
    Trajectory of electron is less curved 
  • d)
    Both move on straight line path
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
An electron and proton enter a uniform magnetic field perpendicular. B...
When a charged particle enters a magnetic field perpendicularly, it moves on a circular path. The required centripetal force is provided by magnetic force.
i.e. magnetic force = Centripetal force.
Now kinetic energy of the particle 
Therefore, Eq. (1) become
Hence trajectory of proton is less curved.
The correct answer is: Trajectory of proton is less curved
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Most Upvoted Answer
An electron and proton enter a uniform magnetic field perpendicular. B...
When a charged particle enters a magnetic field perpendicularly, it moves on a circular path. The required centripetal force is provided by magnetic force.
i.e. magnetic force = Centripetal force.
Now kinetic energy of the particle 
Therefore, Eq. (1) become
Hence trajectory of proton is less curved.
The correct answer is: Trajectory of proton is less curved
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An electron and proton enter a uniform magnetic field perpendicular. Both have same kinetic energy. Which of the following is true?a)Both trajectories are equally curvedb)Trajectory of proton is less curvedc)Trajectory of electron is less curvedd)Both move on straight line pathCorrect answer is option 'B'. Can you explain this answer?
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