1.

The resistance of wire at 20∘C is 20Ω, and at 300∘C resistance of wire is 50Ω. The temperature at which its resistance will be 40Ω is

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The resistance of wire at 20C is 20Ω, and at 300C resistance of wire is 50Ω. The temperature at which its resistance will be 40Ω is



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