Electronic Devices And Circuits - Study Mode
[#121] Which one of the following is not LED material?
Correct Answer
(D) SiO 2
[#122] When donor atoms are added to semiconductor, it
Correct Answer
(D) Introduces a new discrete energy level below the conduction band
[#123] In a p-n-p transistor biased in the active region, in the n-type base, holes
Correct Answer
(B) diffuse and recombine
[#124] In transistor, if electrons flow into emitter,
Correct Answer
(A) Holes flows out of the emitter
[#125] Energy band gap of an insulating materials is:
Correct Answer
(B) greater than 5 eV