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A silver wire has a resistance of 2.1Ome...

A silver wire has a resistance of `2.1Omega` at `27.5^(@)C&2.7Omega` at `100^(@)C` Determine the temperature coefficient of resistivity of silver.

Text Solution

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`R_(t) =R_(0)(1+a?)`
`2.1 =R_(0) (1+ a xx 27.5)`………(1)
`2.7 =R_(0)(1+a xx 100)`…………(2)
Solve equation (1) and (2) `a = 0.0039^(@) C^(-1)`
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