Current Electricity Part 1

Section: Physics
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Question : 94 of 100
 
Marks: +1, -0
The thermo e.m.f. of a thermo -couple is 25µV\/‌∘C at room temperature. A galvanometer of 40‌ohm resistance, capable of detecting current as low as 10−5A, is connected with the thermo couple. The smallest temperature difference that can be detected by this system is
[AIEEE 2003]
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