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.
You need to log in, in order to post comments.
Added over 8 years ago | 00:01:18 | 37684 views
Added almost 9 years ago | 00:01:40 | 58918 views
Added over 6 years ago | 00:04:33 | 28179 views
Added over 7 years ago | 00:01:19 | 48712 views
Added over 7 years ago | 00:01:13 | 37581 views
Added almost 9 years ago | 00:01:02 | 37145 views