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The resistivity of Aluminium is twice that of copper. However, the density of Aluminium is one-third that of Copper.

a) For equal length and resistance, calculate the ratio:

I'm thinking, the density ratio (Al:Cu) is 1:3 ...and the resistivity ratio is 2:1 ...so would the overall ratio be, 2:3 ? I have no idea...

This is easy Physics compared to what else is on this site, but my physics isn't any good, so I joined this forum in hope that someone would be able to help me!

Thank you :)

a) For equal length and resistance, calculate the ratio:

mass of aluminium/mass of copper

I'm thinking, the density ratio (Al:Cu) is 1:3 ...and the resistivity ratio is 2:1 ...so would the overall ratio be, 2:3 ? I have no idea...

This is easy Physics compared to what else is on this site, but my physics isn't any good, so I joined this forum in hope that someone would be able to help me!

Thank you :)

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