1. . Zener diodes are also known as
(A) Forward bias diode
(B) Voltage regulators
(C) Breakdown diode
(D) None of the mentioned
2. . Which of the following can be used in series with a Zener diode so that combination has almost zero temperature coefficient?
(A) Diode
(B) Resistor
(C) Transistor
(D) MOSFET
3. . Which of the following is true about the resistance of a Zener diode?
(A) All of the mentioned
(B) It has dynamic resistance
(C) The value of the resistance is the inverse of the slope of the i-v characteristics of the Zener diode
(D) It has an incremental resistance
4. . To reduce the breakdown voltage a Zener diode is:
(A) Lightly doped
(B) Heavily doped
(C) Moderately doped
(D) None of above
5. . Optoelectronic devices works on ___________.
(A) light
(B) electrical current
(C) Both A and B
(D) None of the above
6. . LED stands for _________.
(A) light emitting devices
(B) light emitting diode
(C) light emitting disc
(D) None of the above
7. . Which among the following devices work on the basis of photo-voltaic effect?
(A) Photo-diode
(B) LED
(C) LCD
(D) None of the above
8. . Light-emitting diode is a _________ semiconductor diode.
(A) P-N
(B) P-P
(C) N-N
(D) None of the above
9. . The full form of LCD is ____________
(A) Liquid Crystalline Display
(B) Liquid Crystal Display
(C) Logical Crystal Display
(D) Logical Crystalline Display
10. . The optical properties of liquid crystals depend on the direction of ___________
(A) Air
(B) Solid
(C) Light
(D) Water