Current Electricity Charging Discharging Of Capacitors Question 112
Peltier coefficient of a thermocouple is 2 nano volts. How much heat is developed at a junction if 2.5 amp current flows for 2 minutes
Options:
A) 6 ergs
B) $ 6\times {{10}^{-7}},ergs $
C) 16 ergs
D) $ 6\times {{10}^{-3}}erg $
Show Answer
Answer:
Correct Answer: A
Solution:
$ H=\pi it=(2\times {{10}^{-9}})\times 2.5\times (2\times 60)=6\times {{10}^{-7}},J=6\times {{10}^{-7}},erg $
BETA
