What is magnetic field intensity H?

  • #1
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Hi all,
My question is, in electromagnetism, magnetic field intensity H is equivalent to electric field intensity E , right??
Now, definition of E says that E is the force experienced by an unit positive charge in an electric field created by a source charge.
So what is the definition for magnetic field intensity, H??. Is it something like that if we place a magnetic monopole in a magnetic field, the force that it experiences is called H?? I am really confused here.....
Thanks in advance
 

Answers and Replies

  • #2
Astronuc
Staff Emeritus
Science Advisor
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Hi all,
My question is, in electromagnetism, magnetic field intensity H is equivalent to electric field intensity E , right??
Now, definition of E says that E is the force experienced by an unit positive charge in an electric field created by a source charge.
So what is the definition for magnetic field intensity, H??. Is it something like that if we place a magnetic monopole in a magnetic field, the force that it experiences is called H?? I am really confused here.....
Thanks in advance
Here is a discussion of magnetic field and magnetic field intensity/strength.

http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magfield.html
The magnetic fields generated by currents and calculated from Ampere's Law or the Biot-Savart Law are characterized by the magnetic field B measured in Tesla. But when the generated fields pass through magnetic materials which themselves contribute internal magnetic fields, ambiguities can arise about what part of the field comes from the external currents and what comes from the material itself. It has been common practice to define another magnetic field quantity, usually called the "magnetic field strength" designated by H.
http://hyperphysics.phy-astr.gsu.edu/hbase/solids/magpr.html

Here is a discussion on the sources of magnetic fields.
http://web.mit.edu/8.02T/www/802TEAL3D/visualizations/coursenotes/modules/guide09.pdf
 
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