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A charged particle begins to move in a magnetic field, initially parallel to the field. The direction of the field now begins to change with its magnitude remaining constant. Choose incorrect statement(s) from the following.
- a)The magnitude of the force acting on the particle will remain constant.
- b)The magnitude of the force acting on the particle will change.
- c)The particle will always move parallel to the field.
- d)The speed of the particle may change.
Correct answer is option 'A,C'. Can you explain this answer?
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Most Upvoted Answer
A charged particle begins to move in a magnetic field, initially paral...
Explanation:
When a charged particle moves in a magnetic field, it experiences a force given by the equation F = qvBsinθ, where q is the charge of the particle, v is its velocity, B is the magnetic field, and θ is the angle between the velocity and the magnetic field. If the particle is initially moving parallel to the magnetic field, then θ = 0, and the force acting on it will be zero. However, if the direction of the magnetic field changes, then the angle θ will change, and the force acting on the particle will no longer be zero. This gives rise to the following points:
Magnitude of the force
Option B is correct. As the direction of the magnetic field changes, the angle θ between the velocity and the magnetic field will also change, causing the force acting on the particle to change. Therefore, the magnitude of the force acting on the particle will change.
Particle’s movement
Option C is incorrect. If the direction of the magnetic field changes, the angle θ between the velocity and the magnetic field will change, causing the direction of the force acting on the particle to change. As a result, the particle will no longer move parallel to the magnetic field, but will instead move in a curved path. This path is known as a circular path, and the radius of the path is given by r = mv/qB, where m is the mass of the particle and v is its velocity.
Speed of the particle
Option D is correct. As the particle moves in a curved path, its speed may change due to the change in direction of the force acting on it. However, the magnitude of the magnetic field remains constant, so the force acting on the particle will always be perpendicular to its velocity. This means that the magnitude of the velocity will remain constant, and only its direction will change.
Conclusion:
Therefore, the correct options are A and C. The magnitude of the force acting on the particle will change, and the particle will not always move parallel to the magnetic field, but will instead move in a curved path.
When a charged particle moves in a magnetic field, it experiences a force given by the equation F = qvBsinθ, where q is the charge of the particle, v is its velocity, B is the magnetic field, and θ is the angle between the velocity and the magnetic field. If the particle is initially moving parallel to the magnetic field, then θ = 0, and the force acting on it will be zero. However, if the direction of the magnetic field changes, then the angle θ will change, and the force acting on the particle will no longer be zero. This gives rise to the following points:
Magnitude of the force
Option B is correct. As the direction of the magnetic field changes, the angle θ between the velocity and the magnetic field will also change, causing the force acting on the particle to change. Therefore, the magnitude of the force acting on the particle will change.
Particle’s movement
Option C is incorrect. If the direction of the magnetic field changes, the angle θ between the velocity and the magnetic field will change, causing the direction of the force acting on the particle to change. As a result, the particle will no longer move parallel to the magnetic field, but will instead move in a curved path. This path is known as a circular path, and the radius of the path is given by r = mv/qB, where m is the mass of the particle and v is its velocity.
Speed of the particle
Option D is correct. As the particle moves in a curved path, its speed may change due to the change in direction of the force acting on it. However, the magnitude of the magnetic field remains constant, so the force acting on the particle will always be perpendicular to its velocity. This means that the magnitude of the velocity will remain constant, and only its direction will change.
Conclusion:
Therefore, the correct options are A and C. The magnitude of the force acting on the particle will change, and the particle will not always move parallel to the magnetic field, but will instead move in a curved path.
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A charged particle begins to move in a magnetic field, initially parallel to the field. The direction of the field now begins to change with its magnitude remaining constant. Choose incorrect statement(s) from the following.a)The magnitude of the force acting on the particle will remain constant.b)The magnitude of the force acting on the particle will change.c)The particle will always move parallel to the field.d)The speed of the particle may change.Correct answer is option 'A,C'. Can you explain this answer?
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A charged particle begins to move in a magnetic field, initially parallel to the field. The direction of the field now begins to change with its magnitude remaining constant. Choose incorrect statement(s) from the following.a)The magnitude of the force acting on the particle will remain constant.b)The magnitude of the force acting on the particle will change.c)The particle will always move parallel to the field.d)The speed of the particle may change.Correct answer is option 'A,C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A charged particle begins to move in a magnetic field, initially parallel to the field. The direction of the field now begins to change with its magnitude remaining constant. Choose incorrect statement(s) from the following.a)The magnitude of the force acting on the particle will remain constant.b)The magnitude of the force acting on the particle will change.c)The particle will always move parallel to the field.d)The speed of the particle may change.Correct answer is option 'A,C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A charged particle begins to move in a magnetic field, initially parallel to the field. The direction of the field now begins to change with its magnitude remaining constant. Choose incorrect statement(s) from the following.a)The magnitude of the force acting on the particle will remain constant.b)The magnitude of the force acting on the particle will change.c)The particle will always move parallel to the field.d)The speed of the particle may change.Correct answer is option 'A,C'. Can you explain this answer?.
A charged particle begins to move in a magnetic field, initially parallel to the field. The direction of the field now begins to change with its magnitude remaining constant. Choose incorrect statement(s) from the following.a)The magnitude of the force acting on the particle will remain constant.b)The magnitude of the force acting on the particle will change.c)The particle will always move parallel to the field.d)The speed of the particle may change.Correct answer is option 'A,C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A charged particle begins to move in a magnetic field, initially parallel to the field. The direction of the field now begins to change with its magnitude remaining constant. Choose incorrect statement(s) from the following.a)The magnitude of the force acting on the particle will remain constant.b)The magnitude of the force acting on the particle will change.c)The particle will always move parallel to the field.d)The speed of the particle may change.Correct answer is option 'A,C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A charged particle begins to move in a magnetic field, initially parallel to the field. The direction of the field now begins to change with its magnitude remaining constant. Choose incorrect statement(s) from the following.a)The magnitude of the force acting on the particle will remain constant.b)The magnitude of the force acting on the particle will change.c)The particle will always move parallel to the field.d)The speed of the particle may change.Correct answer is option 'A,C'. Can you explain this answer?.
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