The cold junction of a thermocouple is 0...

The cold junction of a thermocouple is `0^(@)C`. The ratio of thermo emf is at temperature s (of hot junction ) `50^(@)C` and `100^(@)C` respectively 8 : 15 . The neutral temperature of thermocouple is `(e = at + bt^(2))`

`425 ^(@)C`

`225 ^(@)C`

`350 ^(@)C`

`850 ^(@)C`

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