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What role is played by molecular magnets to magnetize and demagnetize bodies?
The relative coercitivity of a material helps to magnetize and demagnetised a substance. If the coercitivity id low then the material can be easily demagnetized and vice versa. A substance can be magnetized by creating magnetic filed of opposite charges and demagnetized by creating same filed of charges.
How much heat is needed to d magnetize steel?
The amount of heat needed to demagnetize steel varies depending on the type of steel and the strength of the magnetization. Generally, heating steel above its Curie temperature (around 760°C for most steels) can demagnetize it by overcoming the magnetic ordering of the material.
Does copper magnetize?
Copper is not a magnetic material and does not magnetize easily.
A good way to demagnetize something is to?
De-magnetization refers to the removal of magnetic properties from an object. One way to de-magnetize something is to heat the object.
How do you magnetize and demagnetize a magnet?
By placing Iron in a strong magnetic field, the field will turn the iron into a magnet. If you melt the iron and then allow it to resolidify, it will drop the magnetic charge (and you can charge it again if you wish).
What is magnetic hardness?
Magnetic hardness refers to the resistance of a material to becoming magnetized. A material with high magnetic hardness will have difficulty becoming magnetized or demagnetized, while a material with low magnetic hardness will magnetize easily. This property is important in applications where a stable magnetic field is required.
Which of the following is true of permanent magnets?
They are difficult to magnetize,
Can you magnetize aluminum?
No, aluminum cannot be magnetized because it is not a ferromagnetic material.
Why are some magnets magnetic and some are not?
If the iron atoms are aligned then the object is magnetic, if they are randomly oriented then it is not. How the object was manufactured may be the cause of the difference, but it always possible to intentionally either magnetize OR demagnetize an object.
How can I magnetize something?
To magnetize something, you can rub a magnet along the object in the same direction multiple times. This will align the magnetic domains within the material, making it magnetic.
What material should be in the core of an electromagnet?
Electromagnets typically use a core made of ferromagnetic materials like iron, nickel, or cobalt. These materials enhance the magnetic field produced by the wire coil when an electric current is passed through it. Ferromagnetic materials are chosen for their ability to easily magnetize and demagnetize, making them ideal for electromagnet applications.
Why are some iron objects magnetic and others not magnrtic?
If the iron atoms are aligned then the object is magnetic, if they are randomly oriented then it is not. How the object was manufactured may be the cause of the difference, but it always possible to intentionally either magnetize OR demagnetize an object.
