Question

The thermo e.m.f. of a thermocouple is 25μV/ºC at room
temperature. A galvanometer of 40 ohm resistance, capable
of detecting current as low as 10⁻⁵ A, is connected with the
thermocouple. The smallest temperature difference that can
be detected by this system is
(a) 12ºC (b) 0ºC (c) 20ºC (d) 16ºC

Answer 1

Answer:

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Explanation:

(d) 16°c