What is the unit for magnetic circuit?
Who invented compass
Ellie, since this is not my area of expertise, I searched Google under the key words "magnetic circuit unit" to get this source:
http://en.wikipedia.org/wiki/Magnetism
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope this helps. Thanks for asking.
First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked.
Since this is not my area of expertise, I searched Google under the key words "compass inventor" to get these possible sources:
http://wiki.answers.com/Q/In_which_year_was_compass_invented_and_who_was_the_inventor
http://library.thinkquest.org/15618/inventor.htm
(Broken Link Removed)
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope this helps. Thanks for asking.
The unit for the magnetic circuit is the ampere-turn (A-turn).
To understand why, let's break it down:
1. Magnetic Flux (Φ): Magnetic flux is a measure of the total magnetic field passing through a given surface. It is represented by the symbol Φ and measured in Weber (Wb).
2. Magnetic Field Strength (H): Magnetic field strength represents the intensity of the magnetic field within a magnetic material. It is measured in ampere-turns per meter (A-turn/m).
3. Magnetomotive Force (MMF): MMF is responsible for establishing the magnetic field in a magnetic circuit. It is directly proportional to the number of turns (N) of wire in a coil carrying an electric current (I). MMF is measured in ampere-turns (AT).
4. Reluctance (R): Reluctance is a measure of the opposition faced by a magnetic circuit in establishing a magnetic field. It is similar to resistance in an electric circuit. Reluctance is measured in ampere-turns per Weber (AT/Wb).
The unit for reluctance (AT/Wb) can be rearranged as (AT / (Wb/AT)) = A-turn. Hence, the unit for the magnetic circuit is the ampere-turn (A-turn).
In summary, the unit for the magnetic circuit is the ampere-turn (A-turn), which represents the magnetomotive force required to establish the magnetic field in a given magnetic material.