Q. A thermo couple develops $200\mu\ V$ between $0℃$ and $100℃.$ If it develops $64\ \mu\ V$ and $76\ \mu\ V$ respectively between $(0℃ - 32℃)$ and $(32℃ - 70℃)$ then what will be the thermo $emf$ it develops between $70℃\ $and $100℃$
A) $65\ \mu\ V$
B) $60\ \mu\ V$
C) $55\ \mu\ V$
D) $50\ \mu\ V$
Explanation
(b) By using $e_{0}^{100} = e_{0}^{32} + e_{32}^{70} + e_{70}^{100}$
$\Rightarrow 200 = 64 + 76 + e_{70}^{100} \Rightarrow e_{70}^{100} = 60\ \mu V$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.