यह दो जंक्शनों के तापमान का एक कार्य था, जो कि TH और TC था, यह गुणों का एक कार्य था जो योग्यता Z के इस आंकड़े द्वारा उपयुक्त रूप से कैप्चर किया गया है, जो कि गुणांक को दो विद्युत प्रतिरोधों के गुणन द्वारा विभाजित किया गया है ।
It was a function of the temperatures of the two junctions, that is TH and TC it was a function of the properties which is aptly captured by this figure of merit Z, which is see the coefficient divided by the product of electrical resistances of the two junctions of the two elements P and N; as well as the thermal conductances of the P and N junctions.