Demonstrations
Identifier | Title | Summary | |
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E&M: C - 001 | Copper and Chromel Wire Segments | A strand of wire composed of differing materials (Cu and NiCr) demonstrates how the amount of heat produced differs with resistance. |
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E&M: C - 002 | Electric Lamps in Series and in Parallel | Two light bulbs of differing wattage are connected in series and in parallel with the AC outlet. |
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E&M: C - 003 | Model Transmission Line | ||
E&M: C - 005 | Lamp with Heat | The wires providing power to a light bulb are heated. As a result, the light bulb gets dimmer. |
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E&M: C - 007 | Homemade Battery to Light Lightbulb | ||
E&M: C - 008 | Electrocute a Pickle | A pickle is electrocuted using current from a standard wall outlet. |
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E&M: C - 009 | Voltaic EMF of an Electrolyte | ||
E&M: C - 012 | Discharge of Electricity Through Gases | ||
E&M: C - 013 | Current Produced by Moving Charges | ||
E&M: C - 014 | Electric Field of a Plasma Ball | A discharge tube brought near a plasma ball will light up. |
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E&M: C - 015 | Ideal and Real Batteries | Lamps are added in parallel to current supplied by both a battery and a power supply; a noticeable difference in brightness is evident due to the internal resistance of the battery. |
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E&M: C - 016 | Photoelectric Effect | A flashlight shone onto a photoelectric tube creates an audible sound; a UV LED produces a current spike in an analog ammeter |
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E&M: C - 017 | Copper Wires of Different Cross-Sectional Areas | The voltage drop across two sections of wire having different cross-sectional areas is measured. |
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E&M: C - 018 | Alternating Current RC Series Circuit | A frequency generator is used to produce a square wave that shows the charge and discharge curves of an RC series circuit |
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E&M: C - 019 | Direct Current RC Series Circuit | The charge and discharge curves of a DC RC Series circuit are shown in conjunction with its effect on a light bulb. |
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E&M: C - 020 | Decrease of Resistance with Decrease in Temperature | A light bulb is turned on and its wiring is submerged in liquid nitrogen. |
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E&M: C - 021 | Piezoelectric Crystal | ||
E&M: C - 022 | Mechanical Model of Resistance | Ping pong balls travel down a board of nails to demonstrate resistance. |
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E&M: C - 023 | 3 Batteries and 2 Bulbs | Two 9V batteries are connected in series with 2 bulbs. A 3rd battery is added in parallel with one of the bulbs. |
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E&M: C - 024 | Mixed Circuit | 1 90-W bulb and 3 25-W bulbs are connected in both series and parallel |
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E&M: C - 025 | Identical Bulbs in Series | 3 Bulbs are connected in series to a power source |
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E&M: C - 026 | Identical Bulbs in Parallel | 3 identical bulbs are connected to a power source in parallel. |
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E&M: C - 027 | Wheatstone Bridge | A Wheatstone Bridge is used to demonstrate how an unknown resistance could be found. |