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MrWhy.com » Videos » MIT Physics Demo — Back "emf" in a Large Solenoid |
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MIT Physics Demo — Back "emf" in a Large Solenoid
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MIT Physics Demo — Back "emf" in a Large Solenoid
A large solenoid is connected to DC power through a knife switch.  When the switch is closed, the current builds up to approximately 30 amps. When the switch is opened, the solenoid attempts to keep the current flowing, creating a huge emf which ionizes the air in a huge spark.Read more about inductors and emf.
Video Length: 24
Date Found: December 11, 2009
Date Produced: April 09, 2008
View Count: 3
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