Joule's Law

Joule's law (due to James Prescott Joule) expresses the amount of heat generated by an electrical resistor, and is expressed by the relation
Q \propto I^2 R t
   
by current I flowing through a resistor with resistance R for a time t, and Q is the heat generated or
Q = k I^2 R t
where k is the constant of proportionality, dependent on the units used to express I, R and t. If amperes, ohms, and seconds are used, and the result expressed in joules, it is simply 1.
units = J / A^2 \Omega s
See also: Peltier-Seebeck effect

 

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