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Magnetism - Coggle Diagram
Magnetism
Simple Phenomenon of Magnetism
Magnetic Materials
Iron, Nickel & Cobalt: Materials that can exhibit magnetism if magnetized.
Magnetic properties
Like Poles Repel & Unlike Poles Attract
Types of Magnets
Temporary Magnets
Permanent Magnets
Magnetism in Earth
Due to the rotation of ferrous molten core of earth, Earth behaves like a one giant magnet. That is why the compass can be used to navigate. The Geographic North of earth has Magnetic south pole so the North of compass always directs itself to the North Pole.
The magnetic poles do not exactly coincide with the geographic poles.
Magnetization
The process in which object gets it domains aligned in such a way that Permanent Magnetism is exhibited by it.
Ways to MAGNETIZE
Demagnetization
Process by which the Magnetic properties are lost by Magnets
Ways to DEMAGNETIZE
Magnetic Induction:
When a magnetic material like IRON , NICKEL & COBALT is placed in MF, the domains of them get aligned due to external magnetic field and thus they behave as magnet. This phenomenon of exhibiting magnet like behavior in presence of external MF is called magnetic Induction.
Electromagnetic Effects
AC generator
Transformer
Magnetic effect of current
Forces on current carrying conductor