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Forums
Physics
Classical Physics
Electromagnetism
Magnetic repulsion between a permanent magnet and an air coil
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[QUOTE="kuruman, post: 6006315, member: 192687"] It is right. The kick (impulse) given to the toy car will be weaker if the magnet is placed farther away where the magnetic field at the coil is less. If you think of the coil as an instantaneous magnet, the farther apart the two magnets are placed, the weaker the repulsion between them. Of course the current in the coil must have the appropriate direction in order to get repulsion rather than attraction. [/QUOTE]
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Forums
Physics
Classical Physics
Electromagnetism
Magnetic repulsion between a permanent magnet and an air coil
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