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Assume that the resistivity of Tungsten ...

Assume that the resistivity of Tungsten (W) is almost twice that of Aluminum (Al) at `0^(@)C` . What should be the approximate value of, `r_(w)//r_(A)` if we want to achieve an identical value of the resistances in two wires made from these metals that have equal lengths?

A

`0.707`

B

2

C

`1.414`

D

4

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