Conduction in Semiconductors Multiple Choice Questions (MCQ) PDF Download

MCQ 1: If p is holes density, n is electrons density and Ω is electron mobility thanconductivity of semiconductor due to holes is given by

1. n Ω_electrons
2. n+ Ω_electrons
3. p Ω_holes
4. pn Ω_holes Ω_electrons

MCQ 2: When electron jumps to conduction band, a Vacancy is left in the

1. Valence band
2. conduction band
3. nucleus band
4. forbidden energy band

MCQ 3: Process occurs when conduction band electrons losses energy and fall back into a hole in Valance band is called

1. combination
2. conduction
3. recombination
4. determination

MCQ 4: Effective flow of holes from one place to another is termed as

1. electrical current
2. dark current
3. hole current
4. electron current

MCQ 5: If n is electrons density and &omega: is electron mobility thanconductivity of metal is given by

1. n+ Ω
2. n/ Ω
3. n Ω
4. Ω/n