Physics · 2010
NEET 2010 · Mains · Code C · Q84
The thermo e.m.f. E in volts of a certain thermo-couple is found to vary with temperature difference θ in °C between the two junctions according to…
The thermo e.m.f. E in volts of a certain thermo-couple is found to vary with temperature difference $\displaystyle \theta$ in °C between the two junctions according to the relation
$$\mathrm{E}=30 \theta-\frac{\theta^2}{15}
$$
The neutral temperature for the thermo-couple will be
Official answer
(3)
$\displaystyle 225$°C
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NEET (UG) 2010 Physics question, with the answer from NTA’s final answer key. Where our answers come from.