Why the resistance of air is so high?
Its resistivity is approximately $2\times10^{16}\, \mathrm{\Omega\cdot m}$.
Trying to compare that when I placed an electron, one in a copper wire and other in air: the one in air seems to be more 'free' than the one in copper wire. If this is not the case then what are those factors that classify air as insulator?
Best Answer
There are only very few free electrons in air, in stark contrast to the number of free electrons in the wire.