How does someone calculate the diameter of a wire when given the constant of the wire, the resistance, and its length? - Quora
![The resistivity of aluminium is twice that of copper and its density one third that of copper. The ratio of the resistances of aluminium to copper wires having the same mass per The resistivity of aluminium is twice that of copper and its density one third that of copper. The ratio of the resistances of aluminium to copper wires having the same mass per](https://dwes9vv9u0550.cloudfront.net/images/5551182/66d382ae-371b-450d-9ea2-0d3b02d2ab06.jpg)
The resistivity of aluminium is twice that of copper and its density one third that of copper. The ratio of the resistances of aluminium to copper wires having the same mass per
![resistivity - I am trying to make a electro magnet. I bought a coil of enamel copper wire from Ebay. How do I determine its resistance? - Electrical Engineering Stack Exchange resistivity - I am trying to make a electro magnet. I bought a coil of enamel copper wire from Ebay. How do I determine its resistance? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/A4KpQ.jpg)