किसी चालक के अनुदिश तापमान में भिन्नता के कारण, इसके अनुदिश विभवांतर उत्पन्न होता है। इस परिघटना को किस रूप में जाना जाता है?

A thermocouple thermometer is based on which of the following phenomena?

The working principle of a thermocouple is based on which effect?

When heat is applied to the junction of two dissimilar metals, an electromotive force (emf) is generated across the cold ends. This phenomenon is known as the: