Faraday’s induction law is clearly demonstrated here. The magnetic field lines emanating from the end of the bar magnet are fringed. As the magnet is moved towards...
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Faraday’s induction law is clearly demonstrated here. The magnetic field lines emanating from the end of the bar magnet are fringed. As the magnet is moved towards or away from the coil’s center (or as the magnet is held stationary and the coil moved), the magnetic flux through an imaginary surface bounded by the coil’s loops varies in time. As a consequence, an induced electric field in the coil produces a current that is evident on the ammeter.
3B25.25 - Spring Wa...
0 Views 14:08:11 11/06/08
The reflection at a fixed end is inverted because the incoming pulse exerts a force on the rigid boundary that is opposite in direction to the reaction force the b...
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The reflection at a fixed end is inverted because the incoming pulse exerts a force on the rigid boundary that is opposite in direction to the reaction force the boundary exerts on the spring. The reflection at a free end is not inverted. If the mass density of the spring is μ1 and that of the boundary is μ2, then a fixed end reflection is modeled by μ2>>μ1 and vice-versa for a free end reflection. In the demonstration, a fixed end is accomplished by attaching the spring to the rod clamp while a free end is approximated by attaching the spring to a light string.
1C10.27 - Air Track...
0 Views 11:53:39 08/22/08
Demonstrates the concept of velocity as a distance traveled divided by the time taken.
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Demonstrates the concept of velocity as a distance traveled divided by the time taken.
Balloon in a Vacuum...
0 Views 16:19:05 12/20/07
Demonstrates Boyle's Law which states that, “ For a fixed amount of gas kept at a fixed temperature, P and V are inversely proportional (while one increases, the o...
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Demonstrates Boyle's Law which states that, “ For a fixed amount of gas kept at a fixed temperature, P and V are inversely proportional (while one increases, the other decreases)."
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