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K7-04: RL CIRCUIT - FIELD COLLAPSE WITH FLUORESCEN 9 years 10 months ago #728

  • zzfixk21
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ID Code: K7-04
Purpose: Demonstrate the magnitude of induced voltage
Description: A 9-volt battery is connected across a large inductor, which in turn is then disconnected from the battery and immediately connected across a fluorescent light. Collapse of the magnetic field in the transformer induces a voltage large enough to cause the fluorescent bulb to flash - well over 100 volts, or over ten times the voltage of the battery.
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