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Saturation is an effect by which any increase in mangetising force produces a feable improvement in magnetic property if the magnetising force is increased beyond a certain limit. This is analogous to the stress-strain curve of a material obeying Hooke's law.
Saturation is of serious concern in electrical engineering that when a Current transformer with a certain ampere rating is fed from a high current source at primary(than it can carry) , the unit can respond at secondary upto the max. magnetic flux carrying capacity of the core and if at such a condition, the secondary if kept open, can produce an unopposed m.m.f which would consequently produce heating of the core and in some cases to the exploding of the CT unit.
The classical equation that relates magnetism with electricity is H x l= NI which can be used for theoretical calculation of mangetic field intensity with a given ampere turn.
However, saturation for an artificial permanent magnet is the max. value of H upto which is can be magnetised, in spite of being exposed to a strong magnetic field for a specific duration.
Zackery Schumm
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Is the magnet in a compass a permanent magnet or electronic?
A. Compasses typically use a permanent magnet.
Is magnetite a magnet?
No, it's a permanent magnet. It consists of an iron oxide, and iron is a permanent magnet.
Is a needle in a compass a permanent magnet?
Yes, it is a permanent magnet.
Is magnetite a temporary magnet?
No, it's a permanent magnet. It consists of an iron oxide, and iron is a permanent magnet.
What distinguishes a permanent magnet from a temporary magnet?
Permanent magnets do not lose their magnetic ability. Temporary magnets, however, gain magnetic properties when they are touched or moved by a permanent magnet. The properties of a temporary magnet dissipates over time after the permanent magnet is removed.
Is the magnet in a compass a permanent magnetic or an electromagnet?
PermanentThere is no source of current in a compass, therefore the magnet is a permanent magnet.
Is a Refrigerator magnet a Permanent magnet?
yes
How is a electromagnet diffrent then a permanent magnet?
By definition an electromagnet is only working when it has a supply of electricity, a Permanent Magnet is always a magnet
An example of a permanent magnet?
An example of a permanent magnet would be the Earth. The Earth is one giant magnet with opposite poles.
Is a permanent magnet called a hard magnet or a electromagnet?
Perminant magnet
Why is a permanent magnet hard to magnetize?
You cannot magnetize a permanent magnet because it is already magnetized.
Is the magnet in a compass a permanent magnet or a electromagnet?
It is a permanent magnet. Electromagnets(as the name suggests) requires an electric source to become a magnet, when the power source is turned off it will not function as a magnet.
