Which of the following is likely to increase the electrical conductivity of Si? Increasing the temperature Doping with an n-type impurity atom Doping with a p-type impurity atom All of the above Solution answer is d) a beacause as temperature increases electrons get activated even bad gap is more so electrical conductivity increase b because doping with n-type electrons is more in number due which electrical conductivity increases c because doping with p-type holes participate in electric current passage.