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What is a small region in a piece of iron where atomic magnetic line up in the same direction?
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Why heat demagnetised the steel?
A piece of metal can be magnetized if the atoms of which it is composed are magnetic, and they have aligned their north-south poles to point in the same direction. Heat increases atomic vibration and will cause these atoms to lose their alignment and point in all different directions, so that their atomic magnetic fields will not combine to form one large magnetic field.
How could you change the direction in which a compass needle points using a cell and a piece of wire?
The compass will react to magnetic fields, and magnetic fields are caused by currents. Therefore, holding a current-carrying wire close to the compass is enough to change the direction in which it points.The compass will react to magnetic fields, and magnetic fields are caused by currents. Therefore, holding a current-carrying wire close to the compass is enough to change the direction in which it points.The compass will react to magnetic fields, and magnetic fields are caused by currents. Therefore, holding a current-carrying wire close to the compass is enough to change the direction in which it points.The compass will react to magnetic fields, and magnetic fields are caused by currents. Therefore, holding a current-carrying wire close to the compass is enough to change the direction in which it points.
How does iron become magnetic?
Iron is a magnetic material, which means that it can be attracted by magnets. To make it become magnetic so as to attract other objects (i.e. to function as a magnet), the process of magnetic induction can be used. This can involve stroking the iron rod with a magnet several times (e.g. 20 times) in a fixed direction.
How do you separate magnetic and nonmagnetic particles?
A non-magnetized piece of iron would capture the magnetic particles.
Can a magnetic field be separated by a piece of ferromagnetic material?
Yes
Why heat demagnetised the steel?
A piece of metal can be magnetized if the atoms of which it is composed are magnetic, and they have aligned their north-south poles to point in the same direction. Heat increases atomic vibration and will cause these atoms to lose their alignment and point in all different directions, so that their atomic magnetic fields will not combine to form one large magnetic field.
What is magnetic vector?
Er.. I'm not Einstein ;-) but I'll try and put you on the right track... The term "magnetic vector" refers to the amplitude and direction of the magnetic field associated with an electromagnetic wave. Hope this helps!
What happens to the magnetic field of a wire when you change the direction of the current of the wire?
If iron piece is place in its field, the direction of the magnetic lines of force change towards North and South as in the case of a magnet. North represents North Pole and South for South Pole.
What are the small individual areas within a magnet called?
magnetic domains. itdescribes a region within a magnetic material which has uniform magnetization. This means that the individual magnetic moments of the atoms are aligned with one another and point in the same direction. Below a temperature called the Curie temperature, a piece of ferromagnetic material undergoes a phase transition and its magnetization spontaneously divides into many tiny magnetic domains, with their magnetic axes pointing in different directions. Magnetic domain structure is responsible for the magnetic behavior of ferromagnetic materials like iron. The regions separating magnetic domains are called domain walls where the magnetisation rotates coherently from the direction in one domain to that in the next domain.
Is a piece of plastic magnetic or non magnetic?
Non-magnetic
Why is a berthold penetrameter in magnetic particle inspection?
A Berthold Pentrameter is similar to a pie gauge. It is used to determine current flow, magnetic field direction, sensitivity, and quality in magnetic particle inspection. A ferromagnetic piece is cut into quadrants, 90 degrees to each other on a rotating body. These cuts is will become visible when magnetic particle medium is applied and magnetism is applied. The body of the gauge is rotated to determin maximum indication direction, thusly you can determine the field direction which is 90 degrees to the indicated direction.
How could you change the direction in which a compass needle points using a cell and a piece of wire?
The compass will react to magnetic fields, and magnetic fields are caused by currents. Therefore, holding a current-carrying wire close to the compass is enough to change the direction in which it points.The compass will react to magnetic fields, and magnetic fields are caused by currents. Therefore, holding a current-carrying wire close to the compass is enough to change the direction in which it points.The compass will react to magnetic fields, and magnetic fields are caused by currents. Therefore, holding a current-carrying wire close to the compass is enough to change the direction in which it points.The compass will react to magnetic fields, and magnetic fields are caused by currents. Therefore, holding a current-carrying wire close to the compass is enough to change the direction in which it points.
A piece of magnetic material that retains its magnetic properties after it is removed from a magnetic field?
That's a "permanent" magnet.
Why are lodestones magnetic and limestones rocks are not?
A lodestone is a magnetized piece of rock. They are made of made of magnetite, a type of iron ore. For a piece of magnetite to be magnetic, it must be exposed to a magnetic field.
What is a electronic and magnetic?
It depends what you mean, but.... ---- Magnetic ---- it could be when you make something magnetic, or when the magnetic field of a magnet attracts a piece of Iron or steel
How does iron become magnetic?
Iron is a magnetic material, which means that it can be attracted by magnets. To make it become magnetic so as to attract other objects (i.e. to function as a magnet), the process of magnetic induction can be used. This can involve stroking the iron rod with a magnet several times (e.g. 20 times) in a fixed direction.
What is the principle of electromagnetism?
pricinples of electromagnetism state that when current passes through a piece of wire magnetic field is generated around the piece of wire and when a piece of wire passes through the magnetic field current is induced into the piece of wire
