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A copper constantan thermocouple produce...

A copper constantan thermocouple produces an emf of 40 microvolt per degree celsius in the linear range of temperature. A galvanometer of resistance 10 ohm and capable of detecting a current of one microampere is employed. What is the smallest temperature that can be detected by this arrangement?

A

`0.25^(@) C`

B

`1.00^(@) C`

C

`0.50^(@) C`

D

`2.00^(@) C`

Text Solution

Verified by Experts

The correct Answer is:
A
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AAKASH SERIES-THERMAL PROPERTIES OF MATTER-THERMOMETRY (PRACTICE SHEET) LEVEL-II (Straight Objective Type Questions)
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  17. Mercury is used in liquid thermometers because it has

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  18. A constant volume gas thermometer works on

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  19. Very high temperatures are measured by

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