| # | Title | Image | Description | Video |
| 1 | Hair on End |
Electric Field
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Remove pointed metal items such as keys and microphones. Stand on the insulated stool. With the variable control fully counter-clockwise, turn the power on. Hold the pointed probe against the sphere while turning up the motor. Place your other hand on the sphere before removing the probe. Do not remove your hand and stay away from anything metal. Allow yourself to charge up. Fine, clean, dry hair stands on end the best. Try pointing at a student or the electrified strings. To discharge without shocks, hold pointed probe against the sphere, remove other hand and turn off motor. |
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| 2 | Electric Field Lines |
Electric Field
|
Bits of material suspended in oil align with an applied electric field. Several pole arrangements are shown. |
Video |
| 3 | Faraday's Ice Pail |
Gauss' Law
|
Charge the sphere several times by rubbing a charged rod on its surface. Touch the proof plane to the outside of the sphere and then to the electroscope. The electroscope charges, indicating there is a charge on the outside of the sphere. Repeat the same test on the inside of the sphere. The electroscope does not charge. |
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| 4 | Radio in a Cage |
Gauss' Law
|
Turn on the light and the radio. You should hear static that the radio picks up from the fluorescent light source. Place the Faraday cage over the radio and you hear nothing. |
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| 5 | Parallel Plate Capacitor |
Capacitors
|
Change the spacing of a charged parallel plate capacitor while it is attached to an electroscope. |
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| 6 | Capacitor with Dielectrics |
Dielectrics
|
Place a dielectric between the plates and push the plated against the dielectric. Turn on the power supply to charge the plates. Disconnect ground lead BEFORE turning the supply off. Slide the dielectric out of he plates and observe how the electroscope changes. Insert other dielectrics. |
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| 7 | Short a Capacitor |
Energy Stored in a Capacitor
|
Turn on the power supply to charge the 5600 microfarad capacitor through the power resistor. Remove the leads from the capacitor without touching the binding posts. Short the posts with the shaft of a screw driver (not the tip). |
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| 8 | Light the Bulb |
Energy Stored in a Capacitor
|
Turn on the power supply to charge the capacitor through the power resistor. Turn off the power and disconnect the power supply. To discharge the capacitor, connect to the light bulb only. Do not short the capacitor. The 60W bulb lights for about 3 seconds. A 7.5 W bulb lights for about 20 seconds. |
