Current Electricity Charging Discharging Of Capacitors Question 107
Question: The temperature of the cold junction of a thermocouple is $ 0^{o}C $ and temperature of the hot junction is $ T^{o}C. $ The thermo e.m.f. is given by the relation $ E=AT-\frac{1}{2}BT^{2} $ (where A = 16 and B = 0.08). The temperature of inversion is
[AIIMS 2001]
Options:
A) $ 100^{o}C $
B) $ 300^{o}C $
C) $ 400^{o}C $
D) $ 500^{o}C $
Show Answer
Answer:
Correct Answer: C
Solution:
$ m=Z,i,t $
Therefore $ 20\times {{10}^{-3}}=( \frac{32}{96500} )\times 0.15\times t $
$ =6.7min=6min.42sec. $
BETA
