Current Electricity Charging Discharging Of Capacitors Question 111
Question: A thermo couple is formed by two metals X and Y metal X comes earlier to Y in Seebeck series. If temperature of hot junction increases beyond the temperature of inversion. Then direction of current in thermocouple will so
Options:
A) X to Y through cold junction
B) X to Y through hot junction
C) Y to X through cold junction
D) Both (b) and (c)
Show Answer
Answer:
Correct Answer: D
Solution:
In the normal condition current flows from X to Y through cold. While after increasing the temperature of hot junction beyond temperature of inversion. The current is reversed i.e. X to Y through hot junction or Y to X through cold junction.
BETA
