Electric Motor Flashcards
1
Q
Where does the magnetic field move from and to in a motor?
A
North to south
2
Q
How does the motor turn in a motor?
A
One force is up and one force is down
3
Q
What does a spilt ring commutator do?
A
Swap contacts (and current) every half turn to keep the motor spinning in the same direction
4
Q
How do you reverse the direction of a motor?
A
1) swap the polarity of direct current
2) swap the magnetic poles
5
Q
What are the uses of an electric motor?
A
CD player, fans, hair dryers, drills
6
Q
Where does the current move from and to in a motor?
A
Positive to negative
