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What is the direction of the induced current in a coil when it is exposed to a changing magnetic field?
When a coil is exposed to a changing magnetic field, an induced current is generated in the coil. The direction of this induced current is such that it creates a magnetic field that opposes the change in the original magnetic field. This phenomenon is described by Faraday's law of electromagnetic induction.
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What factors determine the magnitude of induced current in a wire loop when exposed to a changing magnetic field?
The magnitude of induced current in a wire loop when exposed to a changing magnetic field is determined by factors such as the strength of the magnetic field, the rate of change of the magnetic field, the number of turns in the wire loop, and the resistance of the wire.
What happens when iron filings are exposed to a magnetic field?
When iron filings are exposed to a magnetic field, they align themselves along the magnetic field lines, creating a visible pattern that shows the direction and strength of the magnetic field.
How does the process of magnetizing iron work?
When iron is exposed to a magnetic field, its atoms align in the same direction, creating a magnetic field in the iron. This alignment makes the iron act like a magnet, attracting or repelling other magnetic materials.
What is the eddycurrent principle?
there is a permanent magnet and a conductor (metal)in relation. when the conductor is moved by cutting the magnetic relay. there will be a charge in the conductor. this is the eddy current priciple
What is a material that shows strong magnetic effects?
Iron is a material that shows strong magnetic effects. When iron is exposed to a magnetic field, its individual atoms align in the same direction, creating a strong magnetic force. This property makes iron a commonly used material in magnets.
What factors determine the magnitude of induced current in a wire loop when exposed to a changing magnetic field?
The magnitude of induced current in a wire loop when exposed to a changing magnetic field is determined by factors such as the strength of the magnetic field, the rate of change of the magnetic field, the number of turns in the wire loop, and the resistance of the wire.
Force on a current-carrying conductor?
When a current-carrying conductor is placed in a magnetic field, a force is exerted on the conductor due to the interaction between the magnetic field and the current. This force is known as the magnetic Lorentz force and its direction is perpendicular to both the magnetic field and the current flow. The magnitude of the force depends on the strength of the magnetic field, the current flowing through the conductor, and the length of the conductor exposed to the magnetic field.
What is the purpose of the induction disk in the context of electromagnetic induction?
The purpose of the induction disk in electromagnetic induction is to generate an electric current when it is exposed to a changing magnetic field.
What is eddy current loss in transformers?
Eddy current loss in Transformers is because of the eddy currents formed in the body of the magnetic core.Whenever a conductor(iron core) exposed to a changing magnetic field a magnetc field produced in the body of the magnetic core.That induce a circulating current in it.Which is called eddy current.In the case transformer it is loss.But it is useful in other purposes.
What happens when iron filings are exposed to a magnetic field?
When iron filings are exposed to a magnetic field, they align themselves along the magnetic field lines, creating a visible pattern that shows the direction and strength of the magnetic field.
Why will an electric current not be produced in a wire that is exposed to a stationary magnetic field?
An electric current will not be produced in a wire exposed to a stationary magnetic field because current generation relies on a change in magnetic flux through the wire, as described by Faraday's law of electromagnetic induction. When the magnetic field is stationary, there is no variation in magnetic flux, and thus no electromotive force (EMF) is induced in the wire. Therefore, without the movement or change in the magnetic field, electrons in the wire do not experience a net force to create a current.
How does a permanent magnet loses its magnetism?
It can lose it by being heated, being struck or being exposed to a rapidly changing magnetic field.
What is Eady Current?
It is cause when a conductor has been exposed to moving magnetic field due to the motion of the field source.
Can a magnet change its domains?
Yes, a magnet can change its domains by being exposed to high temperatures or strong magnetic fields, causing the magnetic domains to align in a different direction. This process is known as magnetic domain rearrangement.
Is boron magnetic or non magnetic?
Boron is the chemical element that's listed as B on the periodic table. It's classified as a metalloid, and is not magnetic in the least.
What is di-magnetic?
Diamagnetic materials are those that create a weak magnetic field in the opposite direction when exposed to an external magnetic field. This causes them to be slightly repelled by magnets. Examples of diamagnetic materials include water, copper, and wood.
How does the process of magnetizing iron work?
When iron is exposed to a magnetic field, its atoms align in the same direction, creating a magnetic field in the iron. This alignment makes the iron act like a magnet, attracting or repelling other magnetic materials.
