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A carbon and an aluminimum wire are conn...

A carbon and an aluminimum wire are connected in series.If the combination has resistance of `27` ohm at `0^(@)C`,what is the resistance of each wire at `0^(@)C` so that the resistance of the combination does not change with temperature ?
`[alpha_(C ) = -0.5 xx 10^(-3)(.^@C)^(-1)` and `alpha_(A) = 4 xx 10^(-3)(.^@C)^-1]`.

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