Q.106 Which of the following has highest forbidden energy gap? A. Gallium arsenide B. Germanium C. Phosphorous D. Silicon Ans.: A Q.107 The voltage across diode carrying constant current is ____, as the temperature is increased. Read More …
Category: SEMI-CONDUCTORS
SEMICONDUCTOR MCQ_07
Q.91 The number of minority charge carriers crossing the junction is mainly depend on _____ in PN junction diode. A. rate of thermal generation of electron-hole pairs B. reverse biased C. forward biased D. barrier potential Read More …
SEMICONDUCTORS MCQ_06
Q.76 In diode, practically no current flows and diode do not conduct till____ A. the barrier potential is overcome by internal voltage B. the barrier potential is overcome by external voltage C. the barrier potential is overcome Read More …
SEMICONDUCTORS MCQ_05
Q.61 Due to diffusion an electric current from p-side to the n-side is known as____ A. diffusion B. drift current C. diffusion current D. concentration gradient Ans.: C Q.62 The drift current and diffusion current are____ Read More …
SEMICONDUCTORS MCQ_04
Q.46 In PN diode near the junction, the free electrons from n-region migrate towards p-region and the holes in p-region migrate towards n-region. This process is known as____ A. doping B. diffusion C. gradient D. immobile Read More …
SEMI CONDUCTOR QUIZ_03
Q.31 In P-type semi conductor the Fermi level is_____ A. lies below the valence band B. lies near to the valence band C. lies above to the valence band D. none of the above Ans.: B Read More …
SEMICONDUCTORS MCQ_02
Q.16 Pure form of Ge or Si is known as _____ A. an intrinsic semiconductors B. an extrinsic semiconductors C. trivalent D. penta valent Ans.: A Q.17 Which of the following is charge carrier for conduction Read More …
SEMICONDUCTORS MCQ_01
Q.01 A material which has a resistance in between that an insulators and of a conductor is known as___ A. semiconductor materials B. insulations C. conductors D. power electronics Ans.: A Q.02 which of the main Read More …