Magnets

Cards (13)

What is a magnetic field
Space around a magnet that magnetic materials experience force in
What happens when like poles are brought together
They repel
What happens when unlike poles are brought together
They attract
Where is the magnetic field of a magnet the strongest
At the poles
In which direction do magnetic fields always point
North to south
What does the distance between magnetic field lines indicate
Closer together = stronger field
Induced magnet
Material that becomes magnetic when it is put in a magnetic field
What does a magnetic compass contain
Small bar magnet
What is produced around a wire when an electric current flows through it
magnetic field
What factors does the strength of the magnetic field around a straight wire depend on
Size of current, distance from wire
Solenoid
Cylindrical coil of wire
What is the motor effect
When a conductor placed in a magnetic field experience a force
What causes the motor effect
Interaction between the magnetic field created current in a wire and the magnetic field in which the wire is placed