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The junctions of a Ni-Cu thermocouple ar...

The junctions of a `Ni-Cu` thermocouple are maintained at `0^@ C and 100^@ C`. Calculate the Seebeck emf produced in the loop. `a_(Ni, Cu) = 16.3 xx 10^(-6) V^@ C^(-1)` and `b_(Ni, Cu) = - 0.042 xx 10^(-6) V^@ C^(-3)`

Text Solution

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`epsilon_(Ni, Cu= a_(Ni, Cu) theta + 1/2 b_(Ni, Cu) theta^2`
`=(16.3 xx 10^(-6) xx 100) V + 1/2 (-0.042 xx 10^(-6) xx 10^4 )V`
`1.42 xx 10^(-3) V`.
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