Physics Semiconductor Multiple Choice Questions & Answers - 2

Question: 6

_____ is a forward biased PN junction diode which emits visible light when energized.

(A) Zener diode

(B) LCD

(C) LED

(D) None of the above

Question: 7

The central region of the output characteristic curve is called

(A) active region

(B) breakdown region

(C) cutoff region

(D) saturation region

Question: 8

Electrons and holes can be generated in a semiconductor crystal with

(A) heat energy or light energy

(B) heat energy and light energy

(C) light energy

(D) heat energy

Question: 9

Zener diode is exclusively operated in the

(A) active region

(B) saturation region

(C) breakdown region

(D) cut in region

Question: 10

Forbidden energy gap is absent in

(A) insulators

(B) conductors

(C) semiconductors

(D) all the above