SaraNextGen Study App [2023-24]
Last Updated On 01-06-2023 - By Jeesha Sara

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 :-

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



Next Question :

The resistance of hot tungsten filament is about 10 times the cold resistance.  What will be the resistance of 100 W and 200 lamps, when not in use?

a)

b)

c)

d)


View Topper Answer

We hope we have given the updated helpful answer / content for your query in an easily accessible format to help you in preparing adequately. We do offer free support materials, 10th maths guide, 10th science guide, 10th tamil guide, 10th social guide, 10th english guide, science 10th guide and also for all the classes books and guide to all the students who sign up for SaraNextGen. Apart from traditional textbook queries, we've got conjointly provided further high order level thinking issues, that are seemingly to be expected in boards and competitive exams. It includes conceptual queries, MCQs, Long and short answer type queries, etc. These Questions are designed to learn each student and academics by providing chapter-wise further issues focusing totally on testing conceptual information with applications. Here, we've got provided a number of the necessary ways in which within which the solutions of all the Questions will profit students of class 1 to 12. If you have any queries, drop a message to us and we will get back to you at the earliest.


SaraNextGen