Recent content by xenolalia
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Graduate Magnetic Induction: EMF Function of Time
I see. Thanks for the explanation! I think if I have to differentiate anything much messier, I'm just going to start using mathematica. xenolalia- xenolalia
- Post #7
- Forum: Electromagnetism
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Graduate Magnetic Induction: EMF Function of Time
Yes: immediately after the magnet is released its velocity is very small, and therefore its dB/dt should be near zero. Then, as the magnet accelerates, its velocity (and hence, the magnitude of dB/dt) should increase rapidly. However, as the magnet passes through the coil and begins to fall...- xenolalia
- Post #5
- Forum: Electromagnetism
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Graduate Magnetic Induction: EMF Function of Time
Since the coil begins to accelerate toward the magnet at t=0, shouldn't the flux be decreasing (or increasing) rapidly as the magnetic field grows in strength? And because emf is the negative time-derivative of flux, shouldn't the voltage be increasing (or decreasing) rapidly also? I'm fairly...- xenolalia
- Post #3
- Forum: Electromagnetism
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Graduate Magnetic Induction: EMF Function of Time
Hi, I've been thinking about the shape of the voltage waveform induced by a magnet falling through a coil. I know (both intuitively and from empirical experience) that the voltage should become increasingly positive as the magnet approaches the coil, then it should decrease rapidly...- xenolalia
- Thread
- Emf Function Induction Magnetic Magnetic induction Time
- Replies: 8
- Forum: Electromagnetism