Question

Resistivity of a material is the resistance of a cm long sample of the material of 1 cm2 cross-sectional area.

Answer 1

Yes the formula of resistivity is:

`R=(\rho l)/(A)`

Where
`\rho` is relativistic resistance with units
`(\Omega)/(m)`, each metal has different relativistic resistance you must find the relativistic resistance of your material using the table of relativistic resistances.

`l` stands for the length of a wire.

`A` stands for the area of the wire. Usually it is equal to
`\pi r^2` because.

So now we have data
`A=1cm^2` but nothing else was specified so we are unable to calculate anything.

Hope this helps.

r3t40

Answer 2

Your answer is going to be 1 cm.

Step-by-step explanation: