Lec 21 MIT 8 02 Electricity and Magnetism Spring 2002

Description: so I am going to turn on the magnet -- I believe I have to push a button here. And the first thing I will do is now power this magnet. So this is a solenoid. I put my hand in here, my hand is paramagnetic, it's not being sucked in. Really it isn't. I feel nothing. The force is -- I can't even feel anything. But I'm not ferromagnetic, thank goodness. Now this one. *Whssht*, fifteen kilograms, just sucked in like that. And I'm very lucky that when it's overshoots here that it wants to go back ...