In full wave rectifier, input a.c. current has a frequency v. The output frequency of current is :
  • V/2
  • V
  • 2V
  • None
Winch of the following gate is not an universal gate?
  • OR
  • NOT
  • AND
  • NAND
Zener diode is used for:
  • producing oscillations in a oscillator
  • amplification
  • stabilisation
  • rectification
In semi conductor, at room temperature :
  • the valence bond is partially empty and the conduction band is partially filled
  • the valence band is completely filled and the conduction band is partially filled
  • the valence band is completely filled
  • the conduction band is completely empty
Crystal diode is:
  • amplifying device
  • fluctuating device
  • non-linear device
  • linear device
The part of a transistor which is heavily doped to produce a large number of majority carriers is :
  • base
  • emitter
  • collector
  • None of these
A p-type semiconductor is:
  • negatively charged
  • positively charged
  • uncharged
  • None of these
The material most commonly used to manufacture electronic solid state devices is :
  • copper
  • silicon
  • germanium
  • aluminium
What is the number of possible crystal systems?
  • 5
  • 7
  • 14
  • 16
A forward biased diode is:
MCQ Questions for Class 12 Physics Chapter 14 Semiconductor Electronics Materials Devices and Simple Circuits with Answers 1
  • a
  • b
  • c
  • d
0 h : 0 m : 1 s

Answered Not Answered Not Visited Correct : 0 Incorrect : 0