Physics

Problem

A nichrome wire of radius

0.60\,\text{mm}

and length

4.0\,\text{m}

has a resistivity of

1.1\times10^{-6}\,\Omega\,\text{m}

. a. (i) Calculate the resistance of the wire. b. (ii) A second nichrome wire of the same length must have exactly twice this resistance. Find the radius that the second wire should have.

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