Current Electricity and Electrical InstrumentEasy
Question
The smallest temperature difference that can be measured with a combination of a thermocouple of thermo e.m.f 30 μV per degree and a galvanometer of 50 ohm resistance, capable of measuring a minimum current of 3 × 10-7 A. is :-
Options
A.0.5 degree
B.1.0 degree
C.1.5 degree
D.2.0 degree
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