Added 6 years ago | 00:02:25 | 38170 views
A laser is directed at an adjustable single slit and then a pinhole and the resulting diffraction patterns can be seen on a screen. A laser directed at two slits spaced closely next to each other creates an interference pattern within...
Added over 6 years ago | 00:01:23 | 63208 views
In the electric field of a Van de Graaff generator, an unprotected Ben Franklin feels electrostatic forces. However, when a metal cage surrounds him, he is completely shielded against any electricity or electrostatic force. This is due...
Added over 6 years ago | 00:02:05 | 36299 views
First, an adjustable parallel-plate capacitor is held at a constant voltage. As the separation between the plates is widened, the electrometer shows charge (or current) flowing off of the plates, while the electroscope shows no change i...
Added over 6 years ago | 00:01:18 | 46439 views
This demonstrates the ideal gas law (PV=nRT) which states that a drop in temperature with fixed mass and external pressure will result in a smaller volume, and vice versa.
Added over 6 years ago | 00:02:54 | 45038 views
Leyden Jars, an early style of capacitor, can be connected to the two electrodes of the Wimshurst Machine. They will store charge as it is generated, giving a much stronger spark across the gap. Next we have a three-piece dissectible ...
Added over 6 years ago | 00:01:10 | 43960 views
A light bulb is connected in series with a coil of very fine copper wire and a DC power supply. The voltage is adjusted so that the bulb glows dimly. When the coil is immersed in liquid nitrogen the resistance of the wire decreases causi...
Added over 6 years ago | 00:02:51 | 46582 views
First, a dipole consisting of two conducting balls connected by an insulating rod swings at the end of a long plexiglass rod. The two balls are charged oppositely by touching it to a conducting rod in the field of a Van de Graaff generat...
Added over 6 years ago | 00:00:55 | 42472 views
Paper confetti is placed atop a Van de Graaff generator and flies off when the grounding rod is removed. When turned on, a Van de Graaff generator builds up lots of negative charge on its large metal sphere. A grounding rod is used t...
Added over 6 years ago | 00:02:02 | 39460 views
A plexiglass rod rubbed with fur picks up a positive electric charge, while a rubber rod rubbed with fur picks up a negative electric charge. When either rod is brought in contact with hanging tinsel, the tinsel becomes charged and flare...
Added over 6 years ago | 00:01:11 | 31326 views
Two identical metal balls are dropped from the same height using an electromagnetic release. One ball is dropped freely, while the other hangs from a string, acting as a simple pendulum. Using two photogates, we see that the vertical v...
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