A magnet made from a coil of wire. Can possibly have a core made of iron, which increases the strength of the magnetic field.
1 of 5
What is Fleming's Left Hand Rule?
Predicts the directoin of the force on a wire. Your index finger points in the direction of the field. Your index finger points in the direction of the current. Your thumb gives the direction of the force.
2 of 5
What can electromagnets be used for?
Thye could be used to open or close switches
3 of 5
How does an electric bell work?
1) The switch is pressed. 2) A current flows through the electromagnet. 3) The hammer returns the start. 4) The hammer hits the bell. 5) The electromagnet attracts the armature. 6) The whole process repeats.
4 of 5
What is a Relay?
A relay allows one circuit
5 of 5
Other cards in this set
Card 2
Front
What is Fleming's Left Hand Rule?
Back
Predicts the directoin of the force on a wire. Your index finger points in the direction of the field. Your index finger points in the direction of the current. Your thumb gives the direction of the force.
Comments
No comments have yet been made