0
What else can I help you with?
How is a magnetic field around a straight piece of wire?
When current flows through a straight wire, a magnetic field is generated around the wire. The direction of the magnetic field can be determined using the right-hand rule: if you wrap your right hand around the wire with your thumb pointing in the direction of the current flow, your fingers will curl in the direction of the magnetic field lines.
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 can a piece of iron be induced into becoming magnetized?
A piece of iron can be induced to become magnetized by placing it in a magnetic field. The magnetic field aligns the magnetic domains within the iron, creating a net magnetic field in the same direction as the applied field. Once the external magnetic field is removed, the iron will retain some level of magnetization.
How is an unmagnetized piece of iron different from the same piece of iron when it is magnetized?
An unmagnetized piece of iron has its atoms pointing in different directions, and opposing each other. When the iron is magnetized, the atoms are mostly pointing in the same direction, and the fields add together.
What can you do to align all of the domains in a piece of iron?
To align all the domains in a piece of iron, you can subject the iron to a magnetic field. As the iron is exposed to the magnetic field, the domains will gradually align in the direction of the field, resulting in the iron becoming magnetized.
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.
How is a magnetic field around a straight piece of wire?
When current flows through a straight wire, a magnetic field is generated around the wire. The direction of the magnetic field can be determined using the right-hand rule: if you wrap your right hand around the wire with your thumb pointing in the direction of the current flow, your fingers will curl in the direction of the magnetic field lines.
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 can a piece of iron be induced into becoming magnetized?
A piece of iron can be induced to become magnetized by placing it in a magnetic field. The magnetic field aligns the magnetic domains within the iron, creating a net magnetic field in the same direction as the applied field. Once the external magnetic field is removed, the iron will retain some level of magnetization.
How is an unmagnetized piece of iron different from the same piece of iron when it is magnetized?
An unmagnetized piece of iron has its atoms pointing in different directions, and opposing each other. When the iron is magnetized, the atoms are mostly pointing in the same direction, and the fields add together.
If you hang a magnet on a piece of string what would it do?
If you hang a magnet on a piece of string, the magnet will align itself in the magnetic field of the Earth and point in a north-south direction. This is because the magnet is trying to align with the Earth's magnetic field.
What can you do to align all of the domains in a piece of iron?
To align all the domains in a piece of iron, you can subject the iron to a magnetic field. As the iron is exposed to the magnetic field, the domains will gradually align in the direction of the field, resulting in the iron becoming magnetized.
Is a piece of plastic magnetic or non magnetic?
Non-magnetic
How do you magnetize a piece of metal effectively?
To magnetize a piece of metal effectively, you can rub a magnet along the metal in one direction multiple times. This process aligns the magnetic domains within the metal, creating a magnetic field. Alternatively, you can expose the metal to a strong magnetic field for a period of time to induce magnetization.
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.
What is the difference between the domains in a piece of magnetized metal and a piece of unmagnetized metal?
In a piece of magnetized metal, the domains are aligned in the same direction, creating a strong magnetic field. In an unmagnetized metal, the domains are randomly oriented, resulting in no net magnetic field. Magnetizing a piece of metal aligns the domains to create a magnetic field, while in an unmagnetized metal, the domains are in a natural random orientation.
