Magnetic Induction vs. Field Strength

Thread starter vptran84
Start date May 25, 2004
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Field Field strength Induction Magnetic Magnetic induction Strength

In summary, magnetic induction is the creation of a magnetic field in a material when placed in an external magnetic field, while field strength refers to the intensity of the magnetic field at a specific point in space. It is typically measured using a magnetometer and can be affected by factors such as the strength of the external magnetic field, material properties, and distance between the two. Some practical applications include generators, transformers, and medical imaging machines, and both induction and field strength can be manipulated through various techniques.

May 25, 2004

vptran84

What is the difference between the meanings of the terms magnetic induction and magnetic field strength?

thanks in advance...

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May 25, 2004

Pattielli

H=B/m
H is magnetic field strength.
B is magnetic induction/magnetic flux density

I forgot everything electrical !

May 27, 2004

Gokul43201

Staff Emeritus

Science Advisor

Gold Member

Pattielli said:

H=B/m

Only where M=0

1. What is magnetic induction and how does it differ from field strength?

Magnetic induction refers to the process of generating a magnetic field in a material when it is placed in an external magnetic field. Field strength, on the other hand, refers to the intensity of the magnetic field at a specific point in space. In other words, magnetic induction is the creation of a magnetic field, while field strength is the measurement of that field.

2. How is magnetic induction measured?

Magnetic induction is typically measured using a device called a magnetometer, which can detect the changes in a magnetic field caused by the presence of an external magnetic field. The unit of measurement for magnetic induction is the tesla (T) or the gauss (G).

3. What factors affect magnetic induction and field strength?

The strength of the external magnetic field, the properties of the material being induced (such as its permeability and susceptibility), and the distance between the two all affect the level of magnetic induction and field strength. Additionally, the direction and orientation of the material in relation to the external field can also impact the induction and strength.

4. What are some practical applications of magnetic induction and field strength?

Magnetic induction is used in many everyday devices, such as generators, transformers, and electric motors. It is also utilized in magnetic levitation technology and in medical imaging machines such as MRI scanners. Field strength is important in determining the strength of magnets and their ability to attract or repel other objects.

5. Can magnetic induction and field strength be manipulated?

Yes, both magnetic induction and field strength can be manipulated through various techniques. For example, by changing the strength of the external magnetic field or altering the properties of the material being induced, the level of induction can be adjusted. Similarly, the field strength can be increased or decreased by changing the distance or orientation of the material in relation to the external field.