2 concept questions on magnetism.

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SUMMARY

This discussion focuses on two conceptual questions regarding magnetism, specifically the behavior of magnets in proximity to one another. The participants analyze the forces acting on a center magnet when two outer magnets are present, concluding that the center magnet experiences attraction due to opposite poles. Additionally, they explore the implications of a moving charge within a magnetic field, noting that a charge moving parallel to the field does not experience a magnetic force. The consensus is that the magnets will accelerate towards each other until they make contact.

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Homework Statement



http://img231.imageshack.us/img231/5296/physicspd2.jpg

Homework Equations



none really.

The Attempt at a Solution



1. I think that the two outside magnets would attach to the middle one and their eventual velocities and accelerations would equal 0 but that seems to easy to me...

4. I think it's yes because magnetic fields exert forces on any moving charge or current that is present in the field. I know the answer is no for this problem though...
 
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jcpwn2004 said:

Homework Statement



http://img231.imageshack.us/img231/5296/physicspd2.jpg

1. I think that the two outside magnets would attach to the middle one and their eventual velocities and accelerations would equal 0 but that seems to easy to me...

4. I think it's yes because magnetic fields exert forces on any moving charge or current that is present in the field. I know the answer is no for this problem though...

1. What can one say about the forces on the center magnet?

If all three magnets are released from rest they accelerate in the direction of magnetic force, until they come in contact with something that prevents their motion.

In the second problem, what is the significance of a moving charge?
 
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Astronuc said:
1. What can one say about the forces on the center magnet?

If all three magnets are released from rest they accelerate in the direction of magnetic force, until they come in contact with something that prevents their motion.

In the second problem, what is the significance of a moving charge?

For #1 aren't the poles of the center magnet attracted to the opposite poles of the outside magnets?

And for #2, does it make sense to say that it's moving in the direction of the magnetic field it can not feel a magnetic force?
 

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