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 | 38052 views
Added over 6 years ago | 00:04:33 | 28541 views
Added almost 9 years ago | 00:01:11 | 47832 views
Added almost 9 years ago | 00:00:37 | 40521 views
Added over 7 years ago | 00:01:13 | 37919 views
Added almost 9 years ago | 00:00:28 | 54184 views