Magnetism Flashcards
What is a magnetic domain?
A Group of átoms with alined magnetic fields
What are magnetic fields?
Is the surround magnet that exerts a force on Other magents and objects
How do You make a domain alined?
You put it in a strong magnetic field
How do You unarranged the domáins?
Put in a heat temperaturas
What is an electromagnet ?
Is a temporary magnet made by grapping a wire coal carrying a current a round an irón core
How do you made the electromagnét stronger?
With more current
With more wire wrapped in the coil
What happens when the magnetic field is closer ?
The strongest is the magnetic field
What happens of a magnet brokes?
It makes two new ones with both poles.
What happens of the wire is longer?
The MF is strongest
What happens of the wire is shorter?
The MF is weaker
What discovered oersted?
It discovered that when current passes trough a wire its formed a magnetic field around the wire
What happens when you changed the direction of the battery?
It change the direction of the current and the Mf
