The Motor Effect: Flashcards
1
Q
How do we calculate the size of the force?
A
= force (n)= Magnetic flux density (T) x current (A) x length (M).
2
Q
When is this equation relevant?
A
= applies to a wire at right angles to the magnetic field
3
Q
What is magnetic flux density?
A
= measurement of the strength of a magnetic field.
4
Q
What does the thumb represent?
A
= motion- direction of the force.
5
Q
What does the first finger do?
A
= direction of magnetic field
= north to south
6
Q
what does the second finger do?
A
= convential current
=
7
Q
What happens if the conductor is parallel to the magnetic field?
A
= not experience a force
