The Motor Effect Flashcards
The size of the force in the motor effect can be increased by:
Increasing the strength if the magnetic field
Increasing the size if the current
When will a conductor not experience a force from a magnetic field?
When it is parra,e to the magnetic field
When is the direction of the force reversed?
The direction of the current is reversed
The direction if the magnetic field is reversed
What is a magnetic field?
The region around a magnet, in which a piece of iron or steel will be attracted to it
What does as electromagnet consist of?
An electromagnet consists of a piece of insulator end wire wrapped around an iron core
What happens to the direction of the force on a wire carrying a current if the direction of the current and the magnetic field are both reversed?
It stays the same
The ends of the coil in a motor are parallel to the magnetic filed. What is the size of the force on them?
Zero
What happen when a current flows through a wire?
A magnet field is produced around the wire
What is the motor effect?
When we place a wire carrying an electric current in a magnetic field, it may experience a force
