Define conductivity of substance give si unit how does it vary with temperature copper silicon

Define conductivity of substance give si unit how does it vary with te

1.	Define conductivity of substance give si unit how does it vary with temperature copper silicon
Answer» It is a property of a substance DUE to which it allows heat and electricity to PASS through it. its SI unit is simen per meter (S/m) . it increases with temp in silicon but decreases in copper with RISE in temp