FACTOID # 2: Puerto Rico has roughly the same gross state product as Montana, Wyoming and North Dakota combined.
 
 Home   Encyclopedia   Statistics   States A-Z   Flags   Maps   FAQ   About 
   
 
WHAT'S NEW
 

SEARCH ALL

FACTS & STATISTICS    Advanced view

Search encyclopedia, statistics and forums:

 

 

(* = Graphable)

 

 


Encyclopedia > Magnetic constant

The magnetic constant (μ0) is the permeability of vacuum. It is a physical constant not defined by other physical constants. In electromagnetism, permeability is the degree of magnetisation of a material that responds linearly to an applied magnetic field. ... For other uses, see vacuum cleaner and Vacuum (musical group). ... In science, a physical constant is a physical quantity whose numerical value does not change. ...


In SI units, the value is exactly expressed by: The International System of Units (abbreviated SI from the French language name Système International dUnités) is the modern form of the metric system. ...

μ0 = 4π · 10-7 N / A2

The newton (symbol: N) is the SI unit of force. ... The ampere (symbol: A) is the SI base unit of electrical current equal to one coulomb per second. ...

References

  • NIST - CODATA 2002 recommended values - magnetic constant. URL accessed on August 31, 2005.

 
 

COMMENTARY     


Share your thoughts, questions and commentary here
Your name
Your comments

Want to know more?
Search encyclopedia, statistics and forums:

 


Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms, 1022, m