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Properties of Set Operation

The thermo em...

Question

The thermo emf in a thermo couple is same when the hot junction temperatures are at $270^{0} C$ and $350^{0} C$ . The cold junction being maintained at $20^{0}$ . The neutral temperature is

300^{0} C

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310^{0} C

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320^{0} C

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330^{0} C

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Solution

The correct option is B $310^{0} C$
$T_{n} - T_{c} = T_{i} - T_{n}$
${2 T}_{n} = T_{i} + T_{j}$
$T_{n} = \frac{350 + 270}{2} = 310^{0 C}$

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