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How can you demagnetize a small object?
You can demagnetize a small object by exposing it to a strong magnetic field in the opposite direction to its current magnetization. Another method is to subject the object to high temperatures, which can disrupt the alignment of the magnetic domains and demagnetize it.
What will happen if you place a small compass in a magnetic field?
When a small compass is placed in a magnetic field, the needle of the compass will align itself with the direction of the magnetic field. This is because the needle is magnetized and responds to the magnetic forces in the surrounding area.
Why is Niobium magnetic?
Niobium is not inherently magnetic. It is a paramagnetic material, meaning it becomes weakly magnetic in the presence of an external magnetic field, but this effect is very small. Niobium does not retain magnetism once the external field is removed.
Does Phobos have a magnetic field?
Phobos had no magnetic field neither in the past nor present. First, Phobos is a solid satellite and thus no molten core and can't generate magnetic field. Second, even in the molten state it's size is too small that such metallic core would effectively formed and cause electrodynamics effect creating magnetic field.
What causes the magnetic compass to react with a magnet?
The compass needle is a small bar magnet balanced on a pin. It swivels freely on this balance point. This is how it can align with the magnetic field of the Earth to show what direction magnetic north is. When you introduce another magnetic field, like from a magnet in close proximity, the needle will align with these local fields since their field strength is stronger than Earth's magnetic field - locally.
How can you demagnetize a small object?
You can demagnetize a small object by exposing it to a strong magnetic field in the opposite direction to its current magnetization. Another method is to subject the object to high temperatures, which can disrupt the alignment of the magnetic domains and demagnetize it.
What will happen if you place a small compass in a magnetic field?
When a small compass is placed in a magnetic field, the needle of the compass will align itself with the direction of the magnetic field. This is because the needle is magnetized and responds to the magnetic forces in the surrounding area.
Why is a small bar magnet able to deflect a compass from Earth's large magnetic field?
The small bar magnet has a stronger magnetic field, at least at short distances.
What am I if I am a small, rectangular object that is pressed to produce musical notes on a piano?
You are a piano key.
Why do the iron fillings align themselves with the magnetic field?
Iron fillings are made up of small magnetic domains that align themselves with an external magnetic field due to the magnetic forces between the fillings and the field. This alignment results in the fillings forming patterns in the direction of the magnetic field lines, making the field around a magnet visible.
What do we call the lines of force surrounding a magnet?
Magnetic field lines. These lines represent the direction in which a small north magnetic pole would tend to move if placed at any given point in the field.
Why is Niobium magnetic?
Niobium is not inherently magnetic. It is a paramagnetic material, meaning it becomes weakly magnetic in the presence of an external magnetic field, but this effect is very small. Niobium does not retain magnetism once the external field is removed.
How can somethings magnetic field like a tokamak not affect the earths magnetic field?
Because it is far too small to have any effect. The Earth's magnetic field is thought to be generated thousands of miles underground by moving rivers of iron.
What can you infer about the strength of a magnetic field based upon the position of the iron filings?
The profile of the iron filings reflects that of the magnetic field. When the magnetic field is strong, the lines will be really tight (small separation) and thick (height and width). =========================
Does Phobos have a magnetic field?
Phobos had no magnetic field neither in the past nor present. First, Phobos is a solid satellite and thus no molten core and can't generate magnetic field. Second, even in the molten state it's size is too small that such metallic core would effectively formed and cause electrodynamics effect creating magnetic field.
What causes the magnetic compass to react with a magnet?
The compass needle is a small bar magnet balanced on a pin. It swivels freely on this balance point. This is how it can align with the magnetic field of the Earth to show what direction magnetic north is. When you introduce another magnetic field, like from a magnet in close proximity, the needle will align with these local fields since their field strength is stronger than Earth's magnetic field - locally.
What is turned in a galvanometer?
A galvanometer measures small electric currents and it typically consists of a coil of wire suspended in a magnetic field. When current flows through the coil, it generates a magnetic field that interacts with the external magnetic field, causing the coil to rotate, which is then indicated on a scale to show the current strength.
