Semiconductor Materials – Exercise – 1

1. Graphite is a :

(a) conductor
(b) insulator
(c) semiconductor
(d) none of these

Answer
Answer : (a)
Explanation
No answer description available for this question. Let us discuss.

2. Doping is a process of :

(a) purifying semiconductor material
(b) increasing impurity percentage
(c) removal of foreign atoms
(d) increasing the bias potential

Answer
Answer : (b)
Explanation
No answer description available for this question. Let us discuss.

3. ……………. is an example of acceptor material.

(a) gallium
(b) arsenide
(c) bismuth
(d) antimony

Answer
Answer : (a)
Explanation
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4. Recombination of electrons and holes takes place when :

(a) an electron falls into a hole
(b) a positive ion and a negative ion bond together
(c) avalanche electron becomes a conduction electron
(d) an atom is formed

Answer
Answer : (a)
Explanation
No answer description available for this question. Let us discuss.

5. The atomic number of silicon is :

(a) 14
(b) 16
(c) 18
(d) 12

Answer
Answer : (a)
Explanation
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≡ LEVEL – Exercise – 1
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