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 | 00:00:46 | 57346 views
Added over 7 years ago | 00:01:11 | 33475 views
Added 8 years ago | 00:01:07 | 39348 views
Added over 8 years ago | 00:00:36 | 53520 views
Added 7 years ago | 00:02:36 | 90630 views
Added over 7 years ago | 00:02:02 | 42349 views