The original text contains numerous spelling and grammatical errors, making it challenging to understand. Below is a corrected version with the assumption that the task is related to calculating the resistivity of an alloy based on given dimensions and resistance:

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Calculate the resistivity of an alloy. Given that a wire of this alloy has a length of [tex]1 \, \text{mm}[/tex] and a diameter of [tex]0.02 \, \text{mm}[/tex] with a resistance of [tex]15 \, \Omega[/tex].

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This revision corrects the errors and clarifies the task while maintaining the use of LaTeX formatting as instructed.