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→Notes for teachers
'''Electromagnetic Induction'''
'''Electromagnetic Induction'''
The magnetic flux developed around the coil being proportional to the amount of current flowing in the coils windings as shown. <br>
The magnetic flux developed around the coil being proportional to the amount of current flowing in the coils windings as shown. <br>
[[File:electromagnetism__coiled_wire.gif|200px]][[File:Micheal Farady.jpg|200px]]
If additional layers of wire are wound upon the same coil with the same current flowing through them, the static magnetic field strength would be increased.
If additional layers of wire are wound upon the same coil with the same current flowing through them, the static magnetic field strength would be increased.
'''Faraday’s Law of Induction'''
'''Faraday’s Law of Induction'''
#Increasing the number of turns of wire in the coil. – By increasing the amount of individual conductors cutting through the magnetic field, the amount of induced emf produced will be the sum of all the individual loops of the coil, so if there are 20 turns in the coil there will be 20 times more induced emf than in one piece of wire.
#''[[Increasing the number of turns of wire in the coil]]'' – By increasing the amount of individual conductors cutting through the magnetic field, the amount of induced emf produced will be the sum of all the individual loops of the coil, so if there are 20 turns in the coil there will be 20 times more induced emf than in one piece of wire.
#Increasing the speed of the relative motion between the coil and the magnet. – If the same coil of wire passed through the same magnetic field but its speed or velocity is increased, the wire will cut the lines of flux at a faster rate so more induced emf would be produced.
#''[[Increasing the speed of the relative motion between the coil and the magnet]]'' – If the same coil of wire passed through the same magnetic field but its speed or velocity is increased, the wire will cut the lines of flux at a faster rate so more induced emf would be produced.
#Increasing the strength of the magnetic field. – If the same coil of wire is moved at the same speed through a stronger magnetic field, there will be more emf produced because there are more lines of force to cut.
#''[[Increasing the strength of the magnetic field]]'' – If the same coil of wire is moved at the same speed through a stronger magnetic field, there will be more emf produced because there are more lines of force to cut.
===Activities===
===Activities===