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How might magnetic material be useful to monarch butterflies?
Navigation and migration .
Can magnetic force pass through iron?
Yes, magnetic forces can pass through iron. Iron is a material that is highly receptive to magnetic fields, which means that magnetic forces are able to easily pass through it. This property of iron makes it a useful material in applications involving magnetic fields.
What is the effect of putting a ferromagnetic material inside the coil of a solenoid?
Inserting a ferromagnetic material inside the coil of a solenoid increases the strength of the magnetic field produced. This is because the material becomes magnetized by the solenoid's field, reinforcing and concentrating the magnetic field lines. This can be useful in applications such as electromagnets or transformers to increase efficiency and strength.
Why aluminium filings can not be used to show the magnetic field?
Aluminum is not magnetic, so it does not interact with magnetic fields in a way that allows its orientation to be used to visualize the field lines. In contrast, iron filings are magnetic and align themselves along the field lines, making them a better material for demonstrating magnetic fields.
What is the significance of hysteresis?
Hysteresis is the delay between an observed outcome and the quantity of change applied.When a ferromagnetic material is magnetized in one direction, it will not relax back to zero magnetization when the imposed magnetizing field is removed. It must be driven back to zero by a field in the opposite direction. If an alternating magnetic field is applied to the material, its magnetization will trace out a loop called ahysteresis loop. The lack of retraceability of the magnetization curve is the property called hysteresis and it is related to the existence of magnetic domains in the material. Once the magnetic domains are reoriented, it takes some energy to turn them back again. This property of ferrromagnetic materials is useful as a magnetic "memory". Some compositions of ferromagnetic materials will retain an imposed magnetization indefinitely and are useful as "permanent magnets". The magnetic memory aspects of iron and chromium oxides make them useful in audiotape recording and for the magnetic storage of data on computer disks.Variations in Hysteresis CurvesThere is considerable variation in the hysteresis of different magnetic materials.
Why only iron attracted towards magnet and not the sand?
Iron contains magnetic domains that align in the presence of a magnetic field, creating a magnetic attraction. Sand, on the other hand, does not contain magnetic properties like iron, so it is not attracted to a magnet.
In what situations would a magnetic sweeper be useful?
A magnetic sweeper would be useful in a situation when someone needs to pick up and find metal items, such as iron. This may be useful in steel work companies.
What material have high retentivity?
Materials like iron, nickel, and cobalt have high retentivity, which means they can retain a significant amount of magnetization even after the magnetic field is removed. This property makes them useful in applications such as permanent magnets and magnetic storage devices.
How a compass works and why it is useful?
A compass has a magnet that points north, according to the Earth's magnetic field. It is useful, precisely, to find out where north is.A compass has a magnet that points north, according to the Earth's magnetic field. It is useful, precisely, to find out where north is.A compass has a magnet that points north, according to the Earth's magnetic field. It is useful, precisely, to find out where north is.A compass has a magnet that points north, according to the Earth's magnetic field. It is useful, precisely, to find out where north is.
How butterflies and bees useful to plants?
They carry pollen grains from one flower to another.
When is a material useful?
A material is useful when it possesses the desired properties for a specific application or task, such as being strong, lightweight, flexible, or insulating. Additionally, the material should be readily available, cost-effective, and environmentally friendly to be considered useful.
Is iorn magnetic?
Yes, iron is magnetic. It is a ferromagnetic material, meaning it can be magnetized due to the alignment of its atomic spins. This property makes iron useful in a wide range of applications, including in magnets and electromagnets.
