N-type and P-type Semiconductors Multiple Choice Questions (MCQ) PDF Download

MCQ 1: Holes in n-type materials are called

1. majority carriers
2. minority carriers
3. medium carriers
4. zero carriers

MCQ 2: Which of the following is not a trivalent impurity atom?

1. Boron
2. Indium
3. Gallium
4. Phosphorous

MCQ 3: Impurity atoms are added to increase number of holes in intrinsic silicon are called

1. bivalent impurities
2. pentavalent impurities
3. trivalent impurities
4. divalent impurities

MCQ 4: Process in whichconductivity of semiconductor can be drastically increase by adding controlled impurities to the intrinsic semiconductor is called

1. doping
2. attenuation
3. excitation
4. toxicity

MCQ 5: Semiconductor materials doped with pentavalent impurity has majority carriers of

1. holes
2. protons
3. neutrons
4. electrons