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A thermocouple of resistance  is connected in series with a galvanometer of  resistance. The thermocouple develops an m.f. of  per degree temperature difference between two junctions. When one junction is kept at  and the other in a molten metal, the galvanometer reads  The temperature of molten metal, when .m.f. varies linearly with temperature difference, will be

a)

b)

c)

d)


Question ID - 150283 | SaraNextGen Answer

A thermocouple of resistance  is connected in series with a galvanometer of  resistance. The thermocouple develops an m.f. of  per degree temperature difference between two junctions. When one junction is kept at  and the other in a molten metal, the galvanometer reads  The temperature of molten metal, when .m.f. varies linearly with temperature difference, will be

a)

b)

c)

d)

1 Answer - 5876 Votes

3537

Answer Key : (a) -

(a)

Let the temperature of molten metal is

The thermo- mf

Current in the circuit

But



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