The Motor Effect Flashcards
What is the Motor Efffect?
When a current carrying wire is placed between magnetic poles, both magnetic field affect one another. The result of this is a force on the wire. This can cause the wire to move.
Why does the Motor Effect happen?
Because charged particles moving through a magnetic field will experience a force.
As long as they are not parallel to the magnetic field.
How do you experience the full force?
To experience the full force, the wire must be at 90° to the magnetic field. If it is parallel, it will have no force. Anything in between will have less force.
How do you conduct a practical to show the direction of the force?
Get a horseshoe magnet and apply a current to a set of rails inside it. Place a bar on the rails to complete the circiuit. This will generate a force that rolls the bar along the rails.
How do you increase the magnitude of the force?
By increasing the strength of the magnetic field or increase the amount of current passing through the conductor.
How do you reverse the direction of the force?
By reversing the current of the magnetic field
Explain how to use Fleming’s Left Hand Rule
1) Point your 1st finger in the direction of the magnetic field.
2) Point your 2nd finger in the direction of the current.
3) Your thumb will be in the direction of the force.
