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The main advantage of an electromagnet is it can be turned on and off. Iron is a soft magnetic material an therefore looses its magnetism very quickly, if you use a metal like like steel it will not loose it magnetism very easily and even if you turn off the current it will remain a magnet.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoBecause soft iron does not stay magnetised and steel does, so steel will still be magnetic when you turn it off.
In other word, soft iron core is easily be magnetised and easily be demagnetised.
Wiki User
∙ 12y agoBecause iron is magnetic properties of steel.
Wiki User
∙ 13y agoto be greater force on the core thn the magnesiun as the carbon is a higher amount and steel has an lower permeability
Wiki User
∙ 11y agobecause of its high permeability and low coercivity
Wiki User
∙ 9y agobecause unlike "hard" iron, it does not remain magnetised when the field is removed.
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Why is the core of a moving coil galvanometer made of soft iron?
The term galvanometer is used to refer to a meter which can measure small currents, usually in the mA (10-3A) or mA (10-6A) range. When a soft iron core is used, the magnetic field lines tend to crowd through the core. It is because soft iron core is ferromagnetic in nature. As a result, the strength of the magnetic field due to the field magnet increases, which in turn increases the sensitivity of the galvanometer.
Why is the core made of nickel and iron?
Soft iron is typically called "powder core" types and is used for higher permability, which induces larger inductance in the wire, especially for small surface mount devices.
Could a electromagnet use a nickel core in the coil of a wire instead of iron?
It is made of a "soft" metal such is iron because it is magnetised easily and demagnetised easily.Electromagnets are said to be temporary magnets because their magnetism can be controlled ie. attraction or repulsion force can be controlled by switching on and off the current which passes through it. That is, electromagnet can be turned on and off as any other electrical device.If some "harder" metal such as steel is used than it can cause the problem because steel is hardly magnetised and it also demagnetises hardly, so it is not efficient to use.Note! Only ferro-magnetics (materials which can be attracted by a magnet) can be used as a core. Those are iron, cobalt, nickel and steel. But among these iron is almost always used because it is the most suitable core.
Why soft iron is used for making a permanent magnet?
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What element joins iron to become steel?
Bismuth is used because its is very soft and malleable.
Why is soft iron named as soft iron?
Soft iron does not retain magnetism. It can be magnetised and demagnetised quickly and easily. Used as a core for transformers. 'Soft' probably relates to it's submission, when exposed to magnetism. It 'gives in' without too much fuss.
Why is the core of a moving coil galvanometer made of soft iron?
The term galvanometer is used to refer to a meter which can measure small currents, usually in the mA (10-3A) or mA (10-6A) range. When a soft iron core is used, the magnetic field lines tend to crowd through the core. It is because soft iron core is ferromagnetic in nature. As a result, the strength of the magnetic field due to the field magnet increases, which in turn increases the sensitivity of the galvanometer.
Why is the core made of nickel and iron?
Soft iron is typically called "powder core" types and is used for higher permability, which induces larger inductance in the wire, especially for small surface mount devices.
Why is a soft iron core used in a relay coil?
because it can magnetize and demagnetize easily
Why does the soft iron core increases the strength of magnetic field?
Iron core (usually soft iron core) is a highly ferromagnetic material. Ferromagnetic materials allows (and attracts) the magnetic field lines to pass through it. When such a material is used in the electromagnet, the magnetic field lines passing through it increases, thereby, the strength of the electromagnet increases. So my friend, I hope you are satisfied with the answer.
What is the purpose of the soft iron core used in making electromagnet?
The purpose is to enhance the magnetic field - to make it stronger - compared to just using air.
What is the best material of the core of a transformer?
The core is responsible for the hysteresis losses in a transformer. These are the losses associated with the ease, or otherwise, by which the core is able to become magnetised in one direction, demagnetise and, then, remagnetise in the opposite direction. These days, the type of material used (variations on silicon steel) are about as efficient as possible.
Why aluminium can't be used as core of transformer?
Because aluminium is, in simple terms, 'non-magnetic' and will not support the formation of magnetic flux. 'Soft' ferrousmetals with low reluctance* (i.e. metals such as iron or silicon steel) must be used.[*'reluctance' is equivalent to 'resistance' in an electric circuit]
Why is soft iron used in electric bell?
Soft iron is used as the metallic substance which gets attracted to the electromagnet and a hammer is attached to the armature which strikes the gong when the armature is attracted.
Could a electromagnet use a nickel core in the coil of a wire instead of iron?
It is made of a "soft" metal such is iron because it is magnetised easily and demagnetised easily.Electromagnets are said to be temporary magnets because their magnetism can be controlled ie. attraction or repulsion force can be controlled by switching on and off the current which passes through it. That is, electromagnet can be turned on and off as any other electrical device.If some "harder" metal such as steel is used than it can cause the problem because steel is hardly magnetised and it also demagnetises hardly, so it is not efficient to use.Note! Only ferro-magnetics (materials which can be attracted by a magnet) can be used as a core. Those are iron, cobalt, nickel and steel. But among these iron is almost always used because it is the most suitable core.
Why soft iron is used for making a permanent magnet?
h
What three raw materials are used to make pig iron?
iron core , coke and limestone are needed to make pig iron
