The cold junction of a thermocouple is at $0^{\circ} C$. The thermo e.m.f produced in the thermocouple is given by the equation $E = 16T - 0.04T^2$,where $T$ is the temperature of the hot junction. The temperature of inversion and neutral temperature of the thermocouple are:
- A$200^{\circ} C ; 400^{\circ} C$
- B$400^{\circ} C ; 200^{\circ} C$
- C$200^{\circ} C ; 300^{\circ} C$
- D$300^{\circ} C ; 200^{\circ} C$
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