Question

Why does it mean for a material to have high resistivity and low temprature coefficient?

Answer 1

Dear Student,
We know only those material has high resistance ,which do not have free electrons
means electrons are closely bounded to lattice atom .There will be required a lot of energy
to dissociate them from lattice atom (core ). That is why they have low temperature coefficient .
means variation of resistivity with temperature is small .
Regards