Magnets Sucky Sucky Flashcards
What is Magnetic DOMAIN
a region consisting of a group of atomic(smol) magnets pointing in the same direction
2 Method for magnetization
◘STROKing Method
◘Electrical Method
Poles of STROKing method
The starting position will be the CONTACTING pole while the end will be its alternate
How STROKing method works?
the magnetic object gets stroke several times in the SAME DIRECTION and with the SAME POLE
How Electrical method works?
A large d̲i̲r̲e̲c̲t̲ ̲c̲u̲r̲r̲e̲n̲t̲ (d.c.) passes thru the solenoid and produces a strong magnetic field
Poles of Electrical method
The region where the [Positive Current (+)] first contacts become [South Pole] while the end is [North Pole] [Or Vice-Versa]
What Right-Hand grip is for?
To locate the current’s direction flow.
•Thumb is the current direction
•Other fingers are coil’s direction
3 ways of demagnetization
○Heating, then cooling
○Hammering
○Alternating the current
What is a (magnetic field)
A region in which a magnetic object within it will experience a Magnetic Force
Plotting of Magnetic field line
Check Discord Phys U ChiBai, if not use Google
What are temporary magnets(iron)
soft magnetic mats, easily magnetized and loses magnetism when the magnetic field(source) is removed
What are PERMANENT Magnets(STEEL)
HARD magnetic mats and able to carry on magnetic properties for a long period of time
uses of temporary magnets
◙ scrapyard magnets
◙ circuit breakers
uses of PERMANENT Magnets
◙ COMPASSES
◙ REFRIGERATOR DOORS
