Which of the following is likely to increase the electrical

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