Semiconductor Materials – 1 – 3

11. The atomic number of germanium is :

(a) 24
(b) 26
(c) 28
(d) 32

ANSWER
Answer : (d)

EXPLANATION
No answer description available for this question. Let us discuss.

12. An electron in a completely filled band :

(a) contributes to the flow of electric current
(b) does not contributes to the flow of electric current
(c) can move but doesn’t contribute to the flow of electric current
(d) none of these

ANSWER
Answer : (b)

EXPLANATION
No answer description available for this question. Let us discuss.

13. Which electron in an element is responsible for chemical & electrical properties ?

(a) valence electrons
(b) revolving electrons
(c) active electrons
(d) passive electrons

ANSWER
Answer : (a)

EXPLANATION
No answer description available for this question. Let us discuss.

14. What does a Hall Effect sensor sense ?

(a) Temperature
(b) Moisture
(c) Magnetic fields
(d) Pressure

ANSWER
Answer : (d)

EXPLANATION
No answer description available for this question. Let us discuss.

15. Which of the following doesn’t have forbidden energy gap between valence band and conductor band ?

(a) conductor
(b) insulator
(c) semiconductor
(d) none of the above

ANSWER
Answer : (a)

EXPLANATION
No answer description available for this question. Let us discuss.

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