Magnetic Fields. Forces, Magnetic Field Lines Electron Flow Left Hand Rule Right Hand Rule. Interactions of a Magnetic Field. Direction : the lines of magnetism start from the North Pole and return to the South Pole
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Forces, Magnetic Field Lines
Left Hand Rule
Right Hand Rule
V is the Voltage
N are the number turns in the coil
Vp = Np
Vp = Np
220 = 1200
Ns = 600 Turns
The Left Hand Rule shows what happens when charged particles (such as electrons in a current) enter a magnetic field.
Velocity = 6.0 x 10 7 meters per second
The Flux density is 4.0 x 10 –2 tesla directed INTO the page
= (1.6x 10 –19 C) (6.0 x 10 7 m/s) (4.0 x 10 –2 telsa)
= 3.0 x 10 –13 N
Single Wire Magnetic Field
The Right Hand Rule, illustrated below, simply shows how a current-carrying wire generates a magnetic field.
Using the RIGHT HAND RULE