If `alpha_(1)` is the temperature coefficient of resistance at `t_(1)^(@)C` find `alpha_(2)` at `t_(2)^(@)C` [hint: `alpha`=1/R(dR)/dt)` and `R=R_(0)(
If `alpha_(1)` is the temperature coefficient of resistance at `t_(1)^(@)C` find `alpha_(2)` at `t_(2)^(@)C`
[hint: `alpha`=1/R(dR)/dt)` and `R=R_(0)(1+at+btp^(2))]`
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