Conductivity

on . Posted in Electrical Engineering

Conductivity, abbreviated as \( \gamma \) (Greek symbol gamma) and \( \sigma \) (Greek symbol sigma), is the amount of current that a material can conduct.  Depending on the material, the transfer rate will vary.  Lower the resistance, higher the conductivity.  Higher the resistance, lower the conductivity. 

 

Conductivity formula

\(\large{ \gamma  =  \frac{ I }{ R } }\) 
Symbol English Metric
\(\large{ \sigma }\) (Greek symbol sigma) = conductivity - \(\large{\frac{S}{m}}\)
\(\large{ I }\) = current \(\large{I}\) \(\large{\frac{C}{s}}\)
\(\large{ R }\) = resistance \(\large{\Omega}\) \(\large{\frac{kg-m^2}{s^3-A^2}}\)

 

Conductivity Formula

\(\large{ J =  \frac{ J }{ E }  }\) 
Symbol English Metric
\(\large{ \sigma }\) (Greek symbol sigma) = conductivity - \(\large{\frac{S}{m}}\)
\(\large{ J }\) = current density - \(\large{ \frac{A}{m^2}  }\) 
\(\large{ E }\) = electric field - \(\large{\frac{V}{m}}\)

 

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Tags: Electrical Equations Conductivity Equations