Electromagnetic induction by Beatrice Bagnato https://padlet.com/bagnatobeatrice/v60p40625ulc By Simone Gatto , Cristiana Ripepi , Giuseppe Cimino e Beatrice Bagnato en-us 2016-03-01 13:12:41 UTC 2024-11-23 11:47:02 UTC hello@padlet.com https://padlet-assets.storage.googleapis.com/portrait/notebook.jpg Generator bagnatobeatrice https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98161717 A generator contains coils of wire , magnetic field , induced electromotive force , electric current pass around the circuit. ]]> 2016-03-01 13:43:17 UTC https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98161717 First experience ( simple generator) bagnatobeatrice https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98164083 - wire stationary in the magnetic field → no corrent generated 
-moving the magnet → current is gerated
-moving the wire faster across the magnetic field → larger current is generated 
-reversing the direction of motion of he wire → the current is reversed

]]> 2016-03-01 13:51:36 UTC https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98164083 Electromagnetic induction bagnatobeatrice https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98180076 Electromagnetic induction is the production of an electromotive force across a conductor exposed to time varying magnetic fields.]]> 2016-03-01 14:34:48 UTC https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98180076 Theorical references bagnatobeatrice https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98187064 - Fleming's rule
- Solenoid rule ]]> 2016-03-01 14:51:52 UTC https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98187064 Key points bagnatobeatrice https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98192940 1. when a wire cuts the lines of a magnetic field, an electromotive force is induced in  wire
2. if the wire is part of a complete circuit, the induced  electromotive force causes a current in the circuit
3. the current is increased if the wire moves faster or a stronger magnet is used
4. the direction of an induced current opposes the change that causes it

]]> 2016-03-01 15:07:29 UTC https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98192940 Theorical reference 1 - Fleming's rule cristianaripepi https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98845692 Fleming's right-hand rule  shows the direction of induced current when a conductor moves in a magnetic field. It can be used to determine the direction of current in a generator's windings.

]]> 2016-03-03 17:44:28 UTC https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98845692 Theorical reference 2 - The solenoid rule cristianaripepi https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98846779 Anticlockwise and clockwise]]> 2016-03-03 17:47:09 UTC https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/98846779 A generator test bagnatobeatrice https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/100614587 Magnetic pole entering or leaving the coil : north pole – north pole – south pole – south pole
Pushed in or pulled out : in  –  out – in - out
Current direction : anticlockwise - clockwise – clockwise - anticlockwise 
Induced polarity of X : north pole – south pole – south pole – north pole  
Magnet and coil : repel – attract – attract - repel 
]]> 2016-03-12 21:13:10 UTC https://padlet.com/bagnatobeatrice/v60p40625ulc/wish/100614587