Properties Of Solids And Liquids Question 576

Question: The resistance of a resistance thermometer has values 2.71 and 3.70 ohm at 10∘C and 100∘C . The temperature at which the resistance is 3.26 ohm is

Options:

A) 40∘C

B) 50∘C

C) 60∘C

D) 70∘C

Show Answer

Answer:

Correct Answer: B

Solution:

Change in resistance 3.70−2.71=0.99Ω

Corresponds to interval of temperature 90∘C .

So change in resistance 3.26−2.71=0.55Ω

Corresponds to change in temperature =900.99×0.55=50∘C

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