Question 7

A silver wire has a resistance of 2.1 Ω at 27.5 °C, and a resistance of 2.7 Ω at 100 °C. Determine the temperature coefficient of resistivity of silver.

Answer

Temperature, *T _{1}* = 27.5°C

Resistance of the silver wire at *T*_{1}, *R*_{1} = 2.1 Ω

Temperature, *T*_{2} = 100°C

Resistance of the silver wire at *T*_{2}, *R*_{2} = 2.7 Ω

Temperature coefficient of silver = α

It is related with temperature and resistance as

Therefore, the temperature coefficient of silver is 0.0039°C ^{- 1.}

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Gautam goutiya
2019-05-30 17:13:20

Thanks for help me

Gautam goutiya
2019-05-30 17:11:47

Thanks for help me

Sakshi Rawat
2019-05-09 21:02:48

It is so helpful for us.

Chandrasekhar Kumar
2018-11-28 21:06:33

Right answer

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