Question: what is the magnetic equivalent of electrical conductivity
Answer: ance R m ( \ displaystyle ( \ mathcal ( R ) ) _ ( m ) ) 1 / henry Electrical resistance ohm Permeance P = 1 R m ( \ displaystyle ( \ mathcal ( P ) ) = ( \ frac ( 1 ) ( ( \ mathcal ( R ) ) _ ( m ) ) ) ) henry Electric conductance G = 1 / R 1 / ohm = mho = siemens Relation between B and H B = μ H ( \ displaystyle \ mathbf ( B ) = \ mu \ mathbf ( H ) ) Microscopic Ohm 's law J = σ E ( \ displaystyle \ mathbf ( J ) = \ sigma \ mathbf ( E ) ) Magnetic flux density B tesla Current density J ampere / square meter Permeability μ henry / meter Electrical conductivity σ siemens / meter