1)      A medium through which heat is conducted may involve the conversion of electrical, nuclear, or chemical energy into heat (or thermal) energy. In heat conduction analysis, such conversion processes are characterized as heat generation.

2)      The temperature of a resistance wire rises rapidly when electric current passes through it as a result of the electrical energy being converted to heat at a rate of I2R

3)      Heat generation is a volumetric phenomenon

4)      The total rate of heat generation in a medium of volume V

5)      In the special case of uniform heat generation, as in the case of electric resistance heating throughout a homogeneous material, the equation reduces to G = V, where  is the constant rate of heat generation per unit volume.

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