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When a charged particle moves perpendicular to a magnetic field, then
- a)Speed of the particle is changed
- b)Speed of the particle remains the same
- c)Direction of the particle remains unchanged
- d)Acceleration of the particle remain unchanged
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
When a charged particle moves perpendicular to a magnetic field, thena...
Explanation:
When a charged particle moves perpendicular to a magnetic field, the speed of the particle remains the same. This is known as the magnetic force or the Lorentz force.
Key Points:
The following factors contribute to the speed of the particle remaining the same:
1. Magnetic Force: When a charged particle moves perpendicular to a magnetic field, it experiences a force known as the magnetic force. This force acts at right angles to the motion of the particle and the magnetic field.
2. Circular Path: The magnetic force causes the charged particle to move in a circular path. This circular motion is due to the continuous deflection of the particle by the magnetic force.
3. Centripetal Force: In a circular motion, there is a force called the centripetal force that continuously pulls the particle towards the center of the circular path. This force is provided by the magnetic force acting as the centripetal force.
4. Constant Speed: The centripetal force required to keep the particle in a circular path is provided by the magnetic force. As long as the magnetic force remains constant, the speed of the particle remains the same.
5. No Change in Energy: Since the speed of the particle remains the same, there is no change in its kinetic energy. The work done by the magnetic force is zero, as the force is always perpendicular to the displacement of the particle.
Conclusion:
When a charged particle moves perpendicular to a magnetic field, the speed of the particle remains the same. This is due to the magnetic force causing the particle to move in a circular path, with the centripetal force provided by the magnetic force. As a result, there is no change in the speed or kinetic energy of the particle.
When a charged particle moves perpendicular to a magnetic field, the speed of the particle remains the same. This is known as the magnetic force or the Lorentz force.
Key Points:
The following factors contribute to the speed of the particle remaining the same:
1. Magnetic Force: When a charged particle moves perpendicular to a magnetic field, it experiences a force known as the magnetic force. This force acts at right angles to the motion of the particle and the magnetic field.
2. Circular Path: The magnetic force causes the charged particle to move in a circular path. This circular motion is due to the continuous deflection of the particle by the magnetic force.
3. Centripetal Force: In a circular motion, there is a force called the centripetal force that continuously pulls the particle towards the center of the circular path. This force is provided by the magnetic force acting as the centripetal force.
4. Constant Speed: The centripetal force required to keep the particle in a circular path is provided by the magnetic force. As long as the magnetic force remains constant, the speed of the particle remains the same.
5. No Change in Energy: Since the speed of the particle remains the same, there is no change in its kinetic energy. The work done by the magnetic force is zero, as the force is always perpendicular to the displacement of the particle.
Conclusion:
When a charged particle moves perpendicular to a magnetic field, the speed of the particle remains the same. This is due to the magnetic force causing the particle to move in a circular path, with the centripetal force provided by the magnetic force. As a result, there is no change in the speed or kinetic energy of the particle.
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Community Answer
When a charged particle moves perpendicular to a magnetic field, thena...
Magnetic force acts perpendicular to the motion of the charged particle and as such the speed of the particle remains unchanged.
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When a charged particle moves perpendicular to a magnetic field, thena)Speed of the particle is changedb)Speed of the particle remains the samec)Direction of the particle remains unchangedd)Acceleration of the particle remain unchangedCorrect answer is option 'B'. Can you explain this answer?
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