Magnets vibrating near a current?

AI Thread Summary
When a magnet is moved near a current-carrying conductor, it experiences vibrations due to the interaction between its magnetic field and the magnetic field generated by the current. This phenomenon is explained by Ampere's Law, which quantifies the magnetic field produced by electric currents. The vibrations occur because the magnet feels forces of attraction or repulsion from the current's magnetic field. Essentially, the current behaves like a magnet, influencing the behavior of the nearby magnet. This interaction illustrates fundamental principles of electromagnetism.
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In school yesterday I was doing a practical and when I moved a small 1.5T block magnet near a rheostat the magnet started vibrating, why does it do this?
 
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Energize said:
In school yesterday I was doing a practical and when I moved a small 1.5T block magnet near a rheostat the magnet started vibrating, why does it do this?
If you have a current, then that current will always generate a magnetic field. The formula for how big the magnetic field would be is given by Ampere's Law. So basically, you can treat the current as if it were a magnet too. So your original block magnet started to vibrate because it felt a force of magnetic attraction to or repulsion from your current.
 
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