3.7.5.1 - Magnetic Flux Density Flashcards
What do lines of flux show?
The direction that a North Pole would align itself.
Where is the strongest flux density?
Where the lines are more concentrated, so at the poles.
What does the right hand grip show?
The direction of magnetic field lines.
What does a wire going into the page look like?
X
What does it does like when a wire is going out of the paper?
A dot.
What are the different fingers for the left hand rule?
Motion (force), field, current
What is magnetic flux density measured in?
Tesla
What will increase the force?
Increasing B, I or L
What is the magnetic flux density?
The force on one metre of wire carrying a current of 1 amp at right angles to the magnetic field.
What is a Tesla equal to?
Wb / m^2
When does F=BIl?
When B and I are perpendicular.
How else can you calculate force?
F = BIlsinx (x in degrees)
