Faraday's law of induction with ferromagnets?

In summary, the total magnetic field in this case will increase due to the alignment of domains in the ferromagnet, resulting in a greater total field that is equal to the sum of the electromagnet's field and the ferromagnet's field.
  • #1
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An electromagnet pulls a ferromagnet from a distance(r), now there is a change in flux. The total magnetic field in this case is increases or decreases?

From my understanding the alignment of the domains should increase the magnetic field, but it is not noticeable...
Now since there is Δ in B, there is -EMF induced, that is equal to the total B of the electromagnet + ferromagnet or just the ferromagnet's B? And that magnetic field is equal , less or greater than the electromagnet(assuming its a large piece of ferromagnet)?
 
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  • #2
The total magnetic field in this case will increase. The alignment of domains will cause the ferromagnet to become more magnetized, and thus increase the total magnetic field. The total magnetic field is equal to the sum of the electromagnet's field and the ferromagnet's field. Depending on the size of the ferromagnet, the total field could be greater than, equal to, or less than the field of the electromagnet.
 

FAQ: Faraday's law of induction with ferromagnets?

What is Faraday's law of induction with ferromagnets?

Faraday's law of induction with ferromagnets states that a changing magnetic field induces an electromotive force (EMF) in a ferromagnetic material, such as iron or cobalt. This EMF can then create an electric current within the material.

How is Faraday's law of induction with ferromagnets different from traditional Faraday's law?

Traditional Faraday's law of induction states that a changing magnetic field can induce an EMF in any conducting material, while Faraday's law of induction with ferromagnets specifically refers to the induction in ferromagnetic materials.

What factors affect the strength of the induced current in Faraday's law of induction with ferromagnets?

The strength of the induced current is affected by the strength of the magnetic field, the rate at which the magnetic field changes, and the properties of the ferromagnetic material, such as its permeability and geometry.

Can Faraday's law of induction with ferromagnets be used to create electricity?

Yes, Faraday's law of induction with ferromagnets can be used to create electricity by converting the EMF induced in the ferromagnetic material into an electric current. This is the principle behind generators and transformers.

How is Faraday's law of induction with ferromagnets used in everyday applications?

Faraday's law of induction with ferromagnets has a wide range of applications, including in power generation, electric motors, and magnetic sensors. It is also used in technologies such as magnetic levitation and magnetic storage devices.

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