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Electromagnetic induction occurs when a conductor moves through a magnetic field. It produces a voltage in the conductor, and if the conductor is part of a complete circuit it creates a current.
It's applications include electric motors which are used in many household products (washing machines, tumble dryers), and some forms of transport (electric cars and trains).
Generators use electromagnetic induction. Almost all power is generated by a moving turbine attached to a generator. Either the turbine is moved by steam from burning a fuel to heat water, or is being moved by water or air (wind turbines and hydroelectric power plants).
Transformers, used for transmission through power lines and power supplies, use electromagnetic induction. They are used to up-scale or down-scale voltage in alternating current (AC). They are used to send electricity through power lines at high voltages (above 111,000 volts) to lower lost energy. They are then used to down-scale the high voltages from power lines to lower voltages (240 to 110 volts) for transmission to households. More transformers are used in power supplies to down-scale this to lower voltages used by household electronics.
Electromagnetic induction often incurs a lot of energy transferred into heat. Which can be used for welding or any kind of heating, known as induction welding or induction heating.
Induction was one of the first methods of detecting touch on a surface, and was used for early graphics tablets.
Induction is used in Electromagnetic forming, which uses high intensity pulsed magnetic fields to shape objects.
Pickups use electromagnetic induction to convert vibrations from a stringed instrument and converts it into electrical current which can be amplified into a speaker or recording device. Pickups are used in electric Guitars.
Electromagnetic induction is also used in electric hobs on cookers. It uses induction heating to heat a pan without the need for fire.
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What is induced magnetism?
In the simplest terms, Induced Magnetism is the magnetism of an object as a result of an external influence. Typically, the external influence is a magnetic field due to another object. (One also hears the term transient magnetism applied to the same phenomenon. To be considered transient, the magnetism must disappear when the external influence disappears, but to be "induced" it just has to appear.) Though this is a technical term, it has a meaning that is the normal meaning of "induced," as in "caused by." This is to be contrasted with other modifiers, like "permanent magnetism" or "remnant magnetism" or "spontaneous magnetism" which are all still magnetism of an object but with a modifier further describing the magnetic state. If one is being more technical, then in scientific circles the term "induced magnetism" usually refers the situation where an object acquires a magnetic field as a result of it being in some external magnetic field even though it is not normally a magnetized material. One see this all the time. If you bring a permanent magnet near a collection of paperclips, then the paperclips all attach to one another and to the permanent magnet. Each paperclip has become, temporarily, a magnet. If the permanent magnet is removed, the paperclips no longer attach to one another. The magnetic properties of the paperclips were "induced" and not a permanent characteristic. More technicalities can be present with this term, because magnetism in an object can be induced in other ways than the application of a magnetic field. In the absence of such technical considerations, it is safe to assume that the term "induced magnetism" just means a temporary state of magnetization of an object induced by an external magnetic field provided by a permanent magnet or an electromagnet.
What is a example of induced magnetism?
Magnetic fields can be generated by either a permanent magnet, or generating it by electrical flow such as through a coil. If the magnet is then put near another material such as iron... the iron will then also start exhibiting an INDUCED magnetic field. Induction motors operate on this principle with the armature being non-magnetic... and the motor operates by inducing a magnetic field into the armature. Superconductors are unique that a magnet will induce an opposite magnetic field in them, and will be repulsed by the magnet.
Can the strength of natural magnets be increased?
The strength of natural magnets be increased in various ways. Artificial magnetism can be induced so as to increase magnetism.
What role do electrons play in magnetism?
Magnetism is produced through electric currents. In the case of a permanent magnet, it is the electrons circling around the atomic nucleus that produces the magnetism (more atoms have one orientation than the opposite orientation).Magnetism is produced through electric currents. In the case of a permanent magnet, it is the electrons circling around the atomic nucleus that produces the magnetism (more atoms have one orientation than the opposite orientation).Magnetism is produced through electric currents. In the case of a permanent magnet, it is the electrons circling around the atomic nucleus that produces the magnetism (more atoms have one orientation than the opposite orientation).Magnetism is produced through electric currents. In the case of a permanent magnet, it is the electrons circling around the atomic nucleus that produces the magnetism (more atoms have one orientation than the opposite orientation).
What is difference between residual magnetism and retentivity?
Residual magnetism and remanence are the same thing. The term residual magnetism is often used in engineering applications. Both terms describe the magnetization, and measure of that magnetism, left behind in a ferromagnetic material after the external magnetic field is removed.
What is induced magnetism?
In the simplest terms, Induced Magnetism is the magnetism of an object as a result of an external influence. Typically, the external influence is a magnetic field due to another object. (One also hears the term transient magnetism applied to the same phenomenon. To be considered transient, the magnetism must disappear when the external influence disappears, but to be "induced" it just has to appear.) Though this is a technical term, it has a meaning that is the normal meaning of "induced," as in "caused by." This is to be contrasted with other modifiers, like "permanent magnetism" or "remnant magnetism" or "spontaneous magnetism" which are all still magnetism of an object but with a modifier further describing the magnetic state. If one is being more technical, then in scientific circles the term "induced magnetism" usually refers the situation where an object acquires a magnetic field as a result of it being in some external magnetic field even though it is not normally a magnetized material. One see this all the time. If you bring a permanent magnet near a collection of paperclips, then the paperclips all attach to one another and to the permanent magnet. Each paperclip has become, temporarily, a magnet. If the permanent magnet is removed, the paperclips no longer attach to one another. The magnetic properties of the paperclips were "induced" and not a permanent characteristic. More technicalities can be present with this term, because magnetism in an object can be induced in other ways than the application of a magnetic field. In the absence of such technical considerations, it is safe to assume that the term "induced magnetism" just means a temporary state of magnetization of an object induced by an external magnetic field provided by a permanent magnet or an electromagnet.
How can be induced?
You can induce magnetism by heating it.
What is a example of induced magnetism?
Magnetic fields can be generated by either a permanent magnet, or generating it by electrical flow such as through a coil. If the magnet is then put near another material such as iron... the iron will then also start exhibiting an INDUCED magnetic field. Induction motors operate on this principle with the armature being non-magnetic... and the motor operates by inducing a magnetic field into the armature. Superconductors are unique that a magnet will induce an opposite magnetic field in them, and will be repulsed by the magnet.
What are 5 examples of magnetic forces?
polarized atomic regions (a magnetic substance) electron-induced magnetism (induction) radio-induced magnetism (radio waves induce current on a conductor that in turn is creates electron induced magnetism) reverse-magnetostriction (the opposite of the effect that states magnetism causes metal to change shape on the atomic level) a flawless LRC circuit
What are 5 example of force?
polarized atomic regions (a magnetic substance) electron-induced magnetism (induction) radio-induced magnetism (radio waves induce current on a conductor that in turn is creates electron induced magnetism) reverse-magnetostriction (the opposite of the effect that states magnetism causes metal to change shape on the atomic level) a flawless LRC circuit
How do metals exhibit magnetism?
Metals exhibit magnetism when the electrons in their atoms align in the same direction, creating a magnetic field. This alignment can occur naturally or be induced by an external magnetic field.
What is affected by electromagnets?
Other magnets, as well as magnetic substances such as iron, in which magnetism is induced by the external magnetic field.
What is affected by a electromagnet?
Other magnets, as well as magnetic substances such as iron, in which magnetism is induced by the external magnetic field.
How do you convert electrical energy to kinetic?
Most often through induced magnetism such as an electric motor.
What is induced magnetsim?
When you are submitted to an area of high magnetism which makes items magnetized. For example, if you have a watch on and then it becomes magnetized from electricity, it no longer works.
What is Gilbert experiment?
There are several experiments known as Gilbert's Experiment, but the most common is in induced magnetism. This showed that an piece of iron became temporarily magnetic when placed on a magnet. This is why sprinkled iron on a paper over a bar magnet seems (but actually does not) show magnetic lines of force. Instead the iron particles just obey Gilbert's Law of Induced Magnetism.
Can the strength of natural magnets be increased?
The strength of natural magnets be increased in various ways. Artificial magnetism can be induced so as to increase magnetism.
