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The EMF generated across a thermocouple ...

The EMF generated across a thermocouple with cold junction at `0^(@)C` , is
`E=a theta+btheta^(2)`
with a `=30muV(.^(@)C)^(-1)` and `b=0.08muV(.^(@)C)^(-2)`
At E=6mV. The hot junction temperature is about

A

`14^(@)C`

B

`144^(@)C`

C

`323^(@)C`

D

`640^(@)C`

Text Solution

AI Generated Solution

To solve the problem, we start with the equation for the electromotive force (EMF) generated across a thermocouple: \[ E = a \theta + b \theta^2 \] where: - \( E \) is the EMF, - \( \theta \) is the temperature of the hot junction, - \( a = 30 \, \mu V/°C \), ...
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