Lesson 2

More Revision: Solenoid - coils of wire. How do you find the pole? What increases the strength of the field?

Motor Effect - Page 113
From Right hand slap rule- size of Force is due to magnetic field, Length of conductor, orientation of conductor, current

1. F Force N newtons
2. B Magnetic Field Strenght T teslas
3. l Length m meters
4. I Current A amps
5. Sin (Theta) (zero if conductor points along the field)

F=BIlsin (Theta)

Next you will learn Torque or turning force about an axis. Torque in an electric motor. Monday will be a demonstration of a magnetic field right hand slapping electrons.

for a good summary for advanced students go to Phet