# Joule’s Law

Joule’s Law is a physical law expressing the relationship between the heat (Q) generated by a current (I) flowing through a conductor of electrical resistance (R) over a given period of time (t).

$Q=I^2Rt$

$I=sqrt{frac{Q}{Rt}}$

$R=frac{Q}{I^2t}$

$t=frac{Q}{I^2R}$