magnetism Flashcards
1
Q
which direction does the magnetic field go?
A
from north to south
2
Q
what happens when two of same same poles are against each other?
A
they repel
3
Q
what happens when two of the opposite poles are with each other?
A
they attract
4
Q
what is electromagnetism?
A
whenever current flows through a wire there is an associated magnetic field
5
Q
what are factors for magnetic strength?
A
number of turns, current, soft iron core
6
Q
what is the thumb in flemings left hand rule?
A
motion
7
Q
what is the first finger in fleming’s left hand rule?
A
magnetic field
8
Q
what is the second finger in fleming’s left hand rule?
A
current
9
Q
what does an electric motor do?
A
converts electricity into energy
