Electronics Gk - Study Mode
[#31] When donor type impurity is added to the semiconductor system. Then
Correct Answer
(A) electrons will be generated and N-type material
[#32] Assertion (A) An N-type semiconductor has a large number of electrons but still it is electrically neutral. Reason (R) An N-type semiconductor is obtained by doping an intrinsic semiconductor with a pentavalent impurity.
Correct Answer
(B) Both A and R are true, but R is not the correct explanation of A
[#33] Which of the following is widely used in making semiconductor chips?
Correct Answer
(C) Germanium
[#34] Doping in semi-conductor glossary is:
Correct Answer
(B) Doping is a process of increasing the electrons or holes
[#35] Match the following. List-I List-II a. Germanium at 0 K 1. n-type semiconductor b. Germanium at room temperature 2. p-type semiconductor c. Germanium doped with indium 3. Insulator d. Germanium doped with arsenic 4. Intrinsic semiconductor
Correct Answer
(C) a-3, b-4, c-2, d-1