Help me!
What factors affect the resistivity of wire?
How will you vary them?
What will you need to keep constant?
Think about pliminary investigation you could carry out
I need it as soon as posiuple
Thanks

Surely this is in your notes.

There are three things that change the resistivity of a wire, cross sectional area, material and temperature.

I'm not doing your work for you, but that will get you started.