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the four magnetic materials are cobalt, nickel, iron and steel
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What causes certain materials to be magnetic?
A material is said to be magnetic if a large percentage of the atoms of which it is comprised are capable of being aligned together such that the individual magnetic fields of individual atoms can reinforce each other. Nickel, Iron, Cobalt, Gadolinium and most of their alloys are highly magnetic. ______________________________________________________________________ There Physical Properties and if it is electrically charged in some cases.
How is plasma confined in a tokamak?
Plasma is highly ionized atoms. This results in extremely energetic ions, and these ions carry an electrostatic charge. The tokamak is a container with magnetic fields for boundaries. The plasma is a moving group of electrostatic charges, and moving charges create magnetic fields. The magnetic field thus created interacts with the magnetic field set up in the tokamak to deflect and thus confine the charged plasma.
Why does the soft iron core increases the strength of magnetic field?
Iron core (usually soft iron core) is a highly ferromagnetic material. Ferromagnetic materials allows (and attracts) the magnetic field lines to pass through it. When such a material is used in the electromagnet, the magnetic field lines passing through it increases, thereby, the strength of the electromagnet increases. So my friend, I hope you are satisfied with the answer.
The scanning device that makes highly detailed pictures from tissue responses to powerful pulses of energy is the?
The MRI - Magnetic Resonance Imager
What happens when the wire in an electromagnet is wrapped around a soft iron core?
A coil of wire or a coil in the shape of a cylinder is a typical shape for an electromagnet. The strength of the magnetic field of an electromagnet can be increased significantly if the coil is wrapped around an iron core. This does not happen with nonmagnetic materials such as wood or aluminum or rubber. The enhancement of the electromagnet is caused by the magnetic properties of iron. The atoms of iron have magnetic properties as a consequence of thier electronic structure. (The cause of magnetism at the atomic level is a complex issue if described in detail and that complexity is beyond this explanation.) In a simplified picture one can say that at the atomic level the iron atoms act like little magnets. The magnetic characteristics of iron are such that an external magnetic field causes the rearrangement of the electronic structure of the iron at the atomic level and that creates a magnetization in the iron. That magnetizations has its own magnetic field just like a normal permanent magnet. The field created by the magnetization of the material adds to the external field and one gets a stronger magnetic field in and around the iron core.
What causes certain materials to be magnetic?
A material is said to be magnetic if a large percentage of the atoms of which it is comprised are capable of being aligned together such that the individual magnetic fields of individual atoms can reinforce each other. Nickel, Iron, Cobalt, Gadolinium and most of their alloys are highly magnetic. ______________________________________________________________________ There Physical Properties and if it is electrically charged in some cases.
What is magnetic resonance angiography?
an imaging test that does not use dyes or x rays and relies on special computer software and powerful magnetic fields to create a highly detailed image of the inside of the brain's arteries.
How is plasma confined in a tokamak?
Plasma is highly ionized atoms. This results in extremely energetic ions, and these ions carry an electrostatic charge. The tokamak is a container with magnetic fields for boundaries. The plasma is a moving group of electrostatic charges, and moving charges create magnetic fields. The magnetic field thus created interacts with the magnetic field set up in the tokamak to deflect and thus confine the charged plasma.
Can magnetism be shielded?
Mu-metal does a pretty good job for smaller fields, but completely shielding something from a magnetic field with a high field strength is not doable. Giron is supposed to be pretty good, and so is MetGlas, but they cannot stop (deflect) all the field lines from a strong field. Highly permeable material is the best shielding. Magnetic lines of force like to travel through permeable materials. That's what permeable means - an easy (easier) route than through space, air, whatever, for magnetic lines of force. What these shielding materials are doing is giving the magnetic lines of force a place to travel other than through space or through whatever is being shielded. The field still exists, but it's concentrated inside the shielding. And the lines of force will reappear from inside the shielding material at its edges. What else would one expect? The shielding can't make the lines of force disappear. As it re-routes them, it means that it has to re-release them somehow. Field density at the edges of shielding will be high. The field is collected for re-routing and distributed back into space after re-routing at a shield's edges. The materials cited are passive shields. Active shields can be constructed, but they are most challenging to engineer. Active magnetic shielding is used in the machinery for magnetic resonance imaging (MRI), and it is an active winding that is driven by an electronics package so that it "cancels out" fields outside the main coil. It's a headache and a half to design and implement active shielding. No shielding can block, stop, or re-route all the magnetic field lines from a magnetic source. Some lines of force will not be re-routed through the shielding and will appear on the other side of it.
What are hard and soft magnetic materials?
Colour: black, opaque. Streak: black. Lustre: metallic or dull. Cleavage: none. Hardness: 5.5-6.5. Specific Gravity: 5.2. Its diagnostic feature is that it is highly magnetic.
What are ferro magnetic materials?
The elements Fe, Ni, and Co and many of their alloys are typical ferromagnetic materials. Ferromagnetic materials exhibit parallel alignment of moments resulting in large net magnetisation even in the absence of a magnetic field. See the related links below for more information.
Are nuclear metals magnetic?
I highly doubt that
Can the lipid pass through the cell membrane?
yes. Lipid soluble substances are highly permeable
Why does the soft iron core increases the strength of magnetic field?
Iron core (usually soft iron core) is a highly ferromagnetic material. Ferromagnetic materials allows (and attracts) the magnetic field lines to pass through it. When such a material is used in the electromagnet, the magnetic field lines passing through it increases, thereby, the strength of the electromagnet increases. So my friend, I hope you are satisfied with the answer.
What is the opposite of magnet?
We usually the term nonmagnetic (or possibly amagnetic) to mean not magnetic. That's the opposite of magnetic, and it means the thing described has no magnetic field impressed upon it, nor will it accept one if it is applied to that thing. Nonferrous and nonmagnetic tools, for example, are used on things that are highly sensitive to damage from magnetic fields. These tools not only are not magnetized, they cannot be magnetized. They won't be attracted to a magnet.
Through the membrane of a resting neuron highly permeable to potassium ions its membrane potential does not exactly match the equilibrium potential for potassium because the neuronal membrane is?
Slightly permeable to sodium ions.
Are silver trade dollars magnetic?
Silver is a not magnetic metal - the most highly magnetic metal is iron - so no unless the cores of the coins are iron
