Seebeck effect and inverse Seebeck effect

[Young Learner]

I just came across Seebeck effect and Inverse Seebeck effect.
It says that when electric current is passed through or if electric voltage is applied between a Seebeck couple heat is dissipated at one end and absorbed at the other.
By assuming that heat dissipation refers to heating and heat absorption referring to cooling (I even doubts whether heat dissipation is heating or cooling) how can a material cool when current is passed through it.
I also want to which type of electric current is passed AC or DC.
Thank You.

 

[Valerie Park]

The Seebeck effect and Inverse Seebeck effect refer to phenomena where a temperature difference between two points causes an electric current to flow in a circuit. The temperature difference is created by the application of heat (or cooling) to one end of the circuit. In the case of the Seebeck effect, applying heat to one end of the circuit causes the other end to cool down. In the case of the Inverse Seebeck effect, applying a voltage across the circuit will cause the hotter end to dissipate heat and the cooler end to absorb heat. This can be done with either AC or DC current.