The temperatures of the junctions of a bismuth-silver thermocouple are maintained at 0°C and 0.001°C. Find the thermo-emf (Seebeck emf) developed. For bismuch-silver, a = –46 × 10 –6 V°C –1 and b = –0.48 × 10 –6 V°C –2 .

Question

Philoid · Accepted Answer

Given
Difference in temperature of junctions, θ = 0.001°C,
a = − 46 × 10⁻⁶ V °C⁻¹
b = − 0.48 × 10⁻⁵ V °C⁻².

We, know emf E is given by-

Putting the value in the above equation, we get

The temperatures of the junctions of a bismuth-silver thermocouple are maintained at 0°C and 0.001°C. Find the thermo-emf (Seebeck emf) developed. For bismuch-silver, a = –46 × 10–6 V°C–1 and b = –0.48 × 10–6 V°C–2.

The temperatures of the junctions of a bismuth-silver thermocouple are maintained at 0°C and 0.001°C. Find the thermo-emf (Seebeck emf) developed. For bismuch-silver, a = –46 × 10^–6 V°C^–1 and b = –0.48 × 10^–6 V°C^–2.