Semiconductor Electronics: Materials, Devices and Simple Circuits

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Question

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Question 1 : Bonds in a semiconductor ____________
1. covalent
2. bivalent
4. None of these
Answer
8779

Question 2 : Number of electrons in the valence shell of a semiconductor is __________
1. 4
2. 3
3. 2
4. 1
Answer
8780

Question 3 : Semiconductors of both p-type and n-type are produced by _______________
1. molecular solids
2. metallic solids
3. covalent solids
4. ionic solids
Answer
8781

Question 4 : With fall of temperature, the forbidden energy gap of a semiconductor _____________
1. increases
2. decreases
3. remains unchanged
4. sometimes increases and sometimes decreases
Answer
8782

Question 5 : In a p-type semiconductor, current conduction is by __________________
1. holes
2. electrons
3. protons
4. atoms
Answer
8783