- #1
Vectronix
- 64
- 2
Hi,
Why is there a difference in electric potential from a point on the surface of a stationary magnet to a point on a conductor that is placed underneath a dielectric? I placed some stationary magnets on top of glass or a piece of paper and put some aluminum under it, and touch one end of a voltmeter to the magnet and the other end of the voltmeter to the aluminum, the most I got was like 0.5 volts. When I remove the paper the potential difference is zero. If I remove the magnet, the potential difference is zero. When I have the magnet there at rest on top of the paper, which is above the aluminum, the potential difference is nonzero. When I start moving the magnet and the paper away from each other, the potential difference starts dropping quickly.
I thought that only a magnetic flux that is changing could induce a difference in potential. Anyone got an idea what's going on here?
Why is there a difference in electric potential from a point on the surface of a stationary magnet to a point on a conductor that is placed underneath a dielectric? I placed some stationary magnets on top of glass or a piece of paper and put some aluminum under it, and touch one end of a voltmeter to the magnet and the other end of the voltmeter to the aluminum, the most I got was like 0.5 volts. When I remove the paper the potential difference is zero. If I remove the magnet, the potential difference is zero. When I have the magnet there at rest on top of the paper, which is above the aluminum, the potential difference is nonzero. When I start moving the magnet and the paper away from each other, the potential difference starts dropping quickly.
I thought that only a magnetic flux that is changing could induce a difference in potential. Anyone got an idea what's going on here?