Previous Up Next

Walker group units of measures

Introduction

SI units

Basic interactions

Dimensions and units

Numeric values of the fundamental constants

Energy Units

Magnetic resonance in SI units


Dimensions and units

Dimensions are very useful for qualitative checks of equations. 
  Quantity   Dimensions   Units
  Kinetic energy      kg m 2 s -2 = N m
  = J (joule)
  Zeeman interaction      kg m 2 s -2 = N m = J (joule)
  Coulomb interaction energy      kg m 2 s -2 = N m = J (joule)
 Permittivity of vacuum      A s V -1 m -1
  = F m -1
  = A 2 s 4 kg -1 m -3
  Permeability of vacuum      H m -1 = T m A -1
  = Wb A -1 m -1
  = V s A -1 m -1
  Thermal energy, Amount of heat      kg m 2 s -2 = N m = J (joule)
     
  Angular momentum       kg m 2 s -1 = J s
  Magnetic moment       A m2  
  Magnetic field B
(Magnetic flux density)
     Wb/m2 = kg·s-2·A-1 = T (tesla)
  gyromagnetic ratio       A s kg -1 = C kg -1
  = s -1 T -1
  Gravitational constant       m 3 kg -1 s -2
  = N m 2 kg -2

ABC Tutorials | Data Processing | Indirect Measurements | NMR Tutorials

Home | Resumé |  Shokhirev.com |  Computing |  Links |  Publications

©Nikolai Shokhirev, 2001-2002